Patient Reviews

GI Alliance physicians are among the most reputable and distinguished gastroenterologists across the nation. Focused on clinical excellence and patient-centered care, our specialists seek to be the partner you need in your quest for better health. We value patient feedback and appreciate every review we receive from those we are privileged to treat. For your convenience, we have gathered a collection of reviews, stories, and testimonials provided by patients who have visited our practices. We welcome you to explore the feedback below to learn more about what it means to be a patient of GI Alliance.

5.0 Review from S.P. Source: Google Mar 29 2024

"As always the experience I have with Dr Marek is phenomenal. I only have to see her once a year, but she remembers me which goes a long way with me. I enjoy her demeanor and personality and she is very good at her profession."

4.0 Review from R.B. Source: Google Mar 29 2024

"Everything went well except for my IV. Dr Marek is great. His efficiency during my surgery to remove a cancer tumor saved my life. Christus Outpatient Surgical Center is a decent place but I did feel very rushed when I was there this time. This experience was not as personal as the last time I was there. Overall I was satisfied with my experience."

4.0 Review from B.W. Source: Google Mar 29 2024

"My experience with Dr Marek was excellent . He was very pleasant and easy to talk to. He made some recommendations that others hadn’t."

5.0 Review from J.B. Source: Google Mar 06 2024

"Dr Marek has been my specialist for years I can’t say enough good things about him and his staff. It is so comforting to know you’re being valued by your medical team and they care about you."

5.0 Review from M.B. Source: Google Mar 06 2024

"Dr. Marek has been my gastroenterologist for the last 10 years. He’s very warm and always smiling, but also very professional and informative. His staff is great-from setting the appointments to the reminders to following up to make sure everything is good."

5.0 Review from C.A. Source: Google Feb 18 2024

"Excellent quality five star service from Dr Marek and the staff at the surgical center. Only negative thing I have to say is strong smell of coffee entering the building was tough having been on nasty medicine for colonoscopy prep all night!"

5.0 Review from J.V. Source: Google Feb 18 2024

"My wife had a colonoscopy with Dr. Marek and it was a very good experience. Then 3 days later she had a diverticulitis flare right before we were to board a cruise ship. It was scary but Dr. Marek and his assistant, Josh, responded quickly and found a way to get the much needed meds to help us continue with our trip. So appreciate their help!"

5.0 Review from M.B. Source: Google Feb 17 2024

"Dr. Marek and his staff are awesome! Sometimes it's hard to find a doctor who really cares, Dr. Shannon Marek is the proff . Angelica Boucher"

5.0 Review from M.J. Source: Google Feb 17 2024

"Very polite, and through! Listens, and explains in depth!"

5.0 Review from R.B. Source: Google Feb 17 2024

"Doctor listened to my concerns and walked though treatment options. I did not feel rushed and he listened"

5.0 Review from P.W. Source: Google Feb 17 2024

"I’ve been frustrated with follow up with my GI Dr. Found Dr Marek. First impression with office staff was excellent. I didn’t have to wait. Very impressed with him and I feel like I’m being taken care of."

5.0 Review from D.F. Source: Google Feb 14 2024

"The most professional and welcoming staff, nurses, and Doctor (Dr. Marek). Made even better by not having to leave New Braunfels for my care!"

5.0 Review from I.U. Source: Google Feb 10 2024

"Excellent customer service from the front desk, nurse (Jeff), and Doctor. Very kind, professional, and understanding."

5.0 Review from M.E. Source: Google Feb 09 2024

"Dr. Marek was very professional and courteous."

5.0 Review from M.B. Source: Google Feb 08 2024

"Very positive appointment yesterday with Dr Marek. His staff was very polite and took care of my needs in a positive manner."

5.0 Review from S. Source: Google Feb 03 2024

"The care the doctor provided was exceptional. I would highly recommend Dr Marek"

5.0 Review from H.S. Source: Google Feb 01 2024

"Dr. Marek is a fabulous doctor. The staff at facility where procedure was done were also top notch!"

5.0 Review from W.H. Source: Google Jan 27 2024

"Good care as always!"

5.0 Review from A.L. Source: Google Jan 26 2024

"My name is Susan Lee and Dr Marek is amazing !! I have full confidence in what he does or suggests as treatment !!"

5.0 Review from L.C. Source: Google Jan 26 2024

"Very knowledgeable"

5.0 Review from S.M. Source: Google Jan 26 2024

"Dr Marek is one of the kindest people I have met. He truly cares for his patients. His staff makes you feel comfortable and have the same compassion as Dr. Marek. I’m thankful for a doctor I can trust."

5.0 Review from H.R. Source: Google Jan 24 2024

"De. Marek and his staff are very professional and courteous. I was seen at my appointed time, checked in quickly and seen with no time loss. My concerns were addressed with care."

5.0 Review from J.L. Source: Google Jan 24 2024

"Dr.Shannon is remarkable."

5.0 Review from M.N. Source: Google Jan 24 2024

"Friendly professional consultation"

5.0 Review from L.T. Source: Google Jan 13 2024

"Dr Marek is very knowledgeable and willing and able to explain everything in a respectful and helpful manner."

5.0 Review from B.D. Source: Google Jan 13 2024

"Great Dr. and great staff. Everyone was awesome and treated me top notch. No complaints at all! Highly suggest this practice!!"

5.0 Review from J.L. Source: Google Jan 06 2024

"Dr. Shannon Marek is the best!!!"

5.0 Review from M.D. Source: Google Jan 06 2024

"Professional, engaged and articulate, comfortingly answering all of my questions. I can’t say t heat I’m looking forward to the procedure (obviously), but I’m confident all will be fine."

5.0 Review from M.P. Source: Google Jan 05 2024

"Listened to the problems I was having and set up scope to be done the next day. Great bedside manners. Mariah his nurse was also efficient and quick."

5.0 Review from I.R. Source: Google Dec 22 2023

"Very professional and friendly"

5.0 Review from G.M. Source: Google Dec 22 2023

"Dr Marek is very nice and professional. Great bedside manner. Would highly recommend him."

5.0 Review from S.M. Source: Google Dec 22 2023

"Dr Marek is always a pleasure to see! Spends plenty of time with me and answers all of my questions !"

5.0 Review from J.O. Source: Google Dec 21 2023

"Very professional..courteous—comfortable experience…"

5.0 Review from D.P. Source: Google Dec 15 2023

"Have had to have colonoscopies more than a few times since turning 50 because of my family history and being in the high risk category. The last two times were with Doctor Marek and were the absolute easiest and most confident procedures performed out of the others. Was completely briefed and all of the staff and Doctor Marek were very informative giving special attention to all my concerns. One of the best things is I was in and out in less than two hours where the others were an all day affair. I specifically ask for Dr. Marek when my health care provider says it’s time for another knowing that I would be getting through the procedure with the least amount of inconvenience and “trauma. I also do very much appreciate the follow ups by the staff and the detail records of the procedure for my files. One of the happier things that I can look forward to with less regret for the next time. Am so thankful!"

5.0 Review from P.O. Source: Google Dec 08 2023

"My first visit with Dr. Marek and TDDC was very positive. The staff was very helpful and accommodating. Dr. Marek was attentive and offered various solutions to the symptoms I had. I am glad that I am a patient with TDDC and Dr. Marek."

5.0 Review from M.S. Source: Google Dec 07 2023

"Good customer service, reception was great. I was seen timely the doctor explained everything very thoroughly. Very happy with them."

5.0 Review from J.B. Source: Google Dec 02 2023

"Experienced a professional and caring atmosphere."

5.0 Review from C.M. Source: Google Nov 29 2023

"I felt comfortable and well taken care of wouldn't change a thing."

5.0 Review from J.R. Source: Google Nov 29 2023

"Dr. Marek was really knowledgeable and answered all of my questions. I was glad I went to him for care to get answers on my condition."

5.0 Review from P.&. Source: Google Nov 22 2023

"Good report with the dr."

5.0 Review from J.E. Source: Google Nov 19 2023

"Dr. Marek actually listened to what I had to say, instead of dismissing me like previous specialists did in the past. He is willing to work with my gynecologist to figure out what’s wrong with me. Thanks!"

5.0 Review from L.S. Source: Google Nov 16 2023

"I was not an actual patient here, but had an encounter over the phone with a staff member. I was looking for a Gastro doctor for my seven year old son. The woman who answered the phone was named Whitney. She advised me that they do not see pediatric patients, but she said for me to hold on and she would get me information on doctors who treat pediatric patients. She went as far as researching several doctors and providing their numbers as well as their ratings on Google. During our phone encounter, she was so patient and never made me feel like I was inconveniencing her. For her to take the time to assist me with this truly means a lot. She truly did not have to go above and beyond but she did and I appreciate her for this! Her customer service skills are impeccable and I truly hope her supervisor sees this review because she deserves recognition. Whitney, if you see this review, thank you again for all of your help today."

4.0 Review from M.F. Source: Google Nov 16 2023

"Smooth getting in. Nice staff,efficient."

5.0 Review from B.M. Source: Google Nov 14 2023

"My what a good listener Dr Marek is! He easy to talk to and was so helpful in his responses. I was call in on time. I highly recommend him!"

5.0 Review from N.H. Source: Google Nov 10 2023

"I had a colonoscopy and it was so easy! I was in and out in a timely manner, yet felt very cared for. The nurses and staff were all very pleasant, too."

5.0 Review from L.R. Source: Google Nov 10 2023

"Great staff throughout scheduling and procedures. Dr. MAREK very personal and communicative. Thanks to all for your your help!"

5.0 Review from M.B. Source: Google Nov 08 2023

"Great doctor and staff,very friendly and caring."

5.0 Review from G.L. Source: Google Nov 01 2023

"Dr Marek explained the procedure prior to having it done. Then followed up after the procedure to explain what was found. Very professional , and caring demeanor."

5.0 Review from B.B. Source: Google Nov 01 2023

"Extremely professional staff, friendly, helpful and appear to enjoy their jobs."

5.0 Review from K.A. Source: Google Oct 28 2023

"Staff was caring and efficient...."

5.0 Review from J.D. Source: Google Oct 27 2023

"Kind and professional care from a caring physician"

5.0 Review from T.H. Source: Google Oct 27 2023

"The staff made me feel very comfortable, helped ease any anxiety I was feeling before my procedure. I appreciate how they all took care of me."

5.0 Review from D.P. Source: Google Oct 24 2023

"Thank you all went very well. Dr. Marek is the best!"

5.0 Review from C.B. Source: Google Oct 15 2023

"Very comfortable setting. Quick checkin."

5.0 Review from D.L. Source: Google Oct 15 2023

"Dr Marek is an excellent physician who is very dedicated and caring."

5.0 Review from F.M. Source: Google Oct 13 2023

"The staff and Dr Marek were all very wonderful and professional during my surgery"

5.0 Review from M.S. Source: Google Oct 13 2023

"Shannon Marek is a great, Great Dr. Gastrointerology. Mike S."

5.0 Review from M.B. Source: Google Oct 13 2023

"Everything was great, staff was excellent. Walked me through all the details,then it was time to go home...."

5.0 Review from K.L. Source: Google Oct 13 2023

"Dr. Marek is professional and explained everything well. He has a great bedside manner and is easy to talk with about delicate matters."

5.0 Review from T.M. Source: Google Oct 13 2023

"Very professional"

5.0 Review from J.M. Source: Google Oct 11 2023

"Easy going and straightforward"

5.0 Review from M.W. Source: Google Oct 11 2023

"Dr Marek is easy to talk to about awkward issues. I appreciate that. He seems to be a pretty fine Doctor as well. Hopefully he will help get to “bottom” of my awkward issue. 😜"

5.0 Review from M.P. Source: Google Oct 11 2023

"First time to see him. He explained everything & was very considerate."

5.0 Review from T. Source: Google Oct 11 2023

"Front office staff were nice and friendly. Back staff were very friendly explain what to except when the doctor came in. Dr. Marek was very professional, made me feel comfortable and explained everything he was doing and what to expect. I highly recommend seeing Dr. Marek and the other Doctor's there."

5.0 Review from S.A. Source: Google Jun 15 2023

"Excellent!!!"

5.0 Review from R.E. Source: Google Jun 15 2023

"Is very personable. Answered all my questions. Seemed truly interested and was very informative."

5.0 Review from K.D. Source: Google Jun 15 2023

"Dr Marek is very professional and a good listener! He doesn’t rush you and explains things very well."

5.0 Review from C.E. Source: Google Jun 15 2023

"Great doctor! Highly recommend. Friendly staff and very very informative doctor with a lot of compassion. Best doctor I've ever been to. No exaggeration."

5.0 Review from J.M. Source: Google May 25 2023

"He was great. Listened to my wife and answered her questions. He was late but apologized. He never rushed us or acted like he needed to go. He came up with a treatment plan. He is a very caring doctor."

5.0 Review from V.G. Source: Google May 18 2023

"Highly recommend! Professional, courteous and fast!"

5.0 Review from O.C. Source: Google May 18 2023

"Always good service when I visit this office, from staff and Dr. Marek l!"

4.0 Review from K. Source: Google May 18 2023

"I think he is a good doctor, but I have felt like he doesn't listen to me about what I been feeling or hurting. And I am not taking anything from him. He is a good doctor! He does not personally see the patient (me) I am only saying for myself. I was being seen by his PDA, I think thats the right reference! She is ok and listens somewhat. I was having big issues on certain areas. I did go though all the testing they wanted to do. Which was fine. Everthing came up as they could not find anything wrong. For a log period after all that I still was haveing problems. Which included loosing a lot of weight to the point of being malnourished, throwing up, lots of diarrhea also. Could not eat without getting sick. But when I returned to follow up, I did tell her how I felt about feeling Iike an hypercronyaic! She listened and we worked things out. She is a good (doctor)! I would recommend him, but I would get this understanding about not seeing him for you, instead of passing it off to his assistant, is after he saw you He is goid at what he does, just needs to be seen by him on your first visits and not passed off ti his helper. That is fir you to figur out!"

5.0 Review from P.S. Source: Google May 04 2023

"Seamless procedure."

5.0 Review from S.A. Source: Google Apr 25 2023

"Made me feel so comfortable and calmed my nerves. Extremely professional and at ease. Would definitely recommend."

5.0 Review from S.D. Source: Google Apr 25 2023

"The doctor that believes the best birthday present for someone turning 50 is a colonoscopy. Well his charm will get you and his gentleness with please you."

5.0 Review from D.B. Source: Google Mar 25 2023

"He was very nice and listened to my concerns and the people in the office are also very nice."

5.0 Review from T.K. Source: Google Mar 25 2023

"From the front desk to the exit sign,Dr. Marek's staff,PA, reception area all of them, five star treatment. I only had a brief wait and both Dr. Marek and his PA talked to me,covered all of my questions and made me feel at ease!! Highly recommended this Gastric Dr!!"

5.0 Review from K.S. Source: Google Mar 25 2023

"Wonderful Doc, pleasant and informative. My process was on time and exceeded my expectations!"

5.0 Review from M.H. Source: Google Mar 25 2023

"I was impressed with Dr. Marek because he actually prepared himself before my visit. He review the footage of the last colonoscopy and told me a few things I was unaware of."

5.0 Review from C.N. Source: Google Feb 25 2023

"Very professional and caring Dr. and staff."

5.0 Review from B.C. Source: Google Feb 25 2023

"Dr Marek is very professional,thorough and has a genuine personality. I'm very satisfied with the treatment we receive as patients of his."

5.0 Review from T.P. Source: Google Feb 25 2023

"Everyone was professional and everything was explained before and after the procedure. As pleasant as the experience could be!"

5.0 Review from N.H. Source: Google Feb 25 2023

"Dr.Marek is kind and considerate..He takes time to talk to you and does so jn a caring way!! The 👌"

5.0 Review from C.Y. Source: Google Jan 25 2023

"I had a colonoscopy for the first time and I heard horror stories so I was a little apprehensive about the procedure, but I am here to tell you that was not the case with Dr. Marek. Everyone on his staff so helpful and put me at ease. They did a great job and I would definitely recommend Dr. Marek."

5.0 Review from B.T. Source: Google Jan 25 2023

"Great Doctor with great supporting staff and great outpatient facilities. Nice to have a staff member checking on patients follow up call afterwards as well."

5.0 Review from R.G. Source: Google Jan 25 2023

"Wonderful Doctor"

5.0 Review from W.M. Source: Google Jan 25 2023

"I highly recommend Dr. Marek!"

5.0 Review from K.K. Source: Google Jan 25 2023

"Dr Sharon J Marek friendly and professional and answered all questions."

5.0 Review from J.P. Source: Google Jan 25 2023

"Dr Marek takes time to listen and ask questions for clarification about my current status. I appreciate his openness and the time he spent with me to help me understand."

5.0 Review from J.R. Source: Google Jan 25 2023

"Love the doctor takes his time with you you can talk freely with him"

5.0 Review from J.G. Source: Google Jan 25 2023

"He takes great care and has an outstanding office with excellent staff. Makes me feel like family."

5.0 Review from R.G. Source: Google Dec 30 2022

"Wonderful Doctor"

5.0 Review from D.S. Source: Google Dec 25 2022

"Dr. Marek is great! He takes time in giving thorough explanations and allows time for asking questions. He's caring and calm, not rushed. I highly recommend him!"

5.0 Review from D.T. Source: Google Dec 25 2022

"Dr. Marek and his staff are wonderful. He and his PA were so easy to talk to. They listened to my concerns and were compassionate about needs."

5.0 Review from D.T. Source: Google Dec 25 2022

"Extremely pleased with Dr. Marek, he is a good listener and takes time to talk and explain procedures and diagnosis. Would highly recommend"

5.0 Review from C.P. Source: Google Dec 25 2022

"The best doctor to have when you’re dealing with a difficult life changing diagnosis. I couldn’t recommend anyone better than Dr. Marek."

5.0 Review from J.D. Source: Google Dec 25 2022

"Very good first visit, Dr. Shannon Merek was very thorough, he appeared very interested in my case, answered all of my questions and had pertinent questions of his own. I look forward in working on my issues with him in the future. Jim Demshar"

5.0 Review from R.B. Source: Google Dec 25 2022

"From the first visit through the completed procedure my experience was handled very professionally. I have turned to Dr. Marek previously and have been very please each time on his thorough process, attention to details and sincere patient care. I would highly recommend Dr.Marek to anyone in need of his professional care."

5.0 Review from R.T. Source: Google Dec 25 2022

"Very pleasant, knowledgeable folks."

5.0 Review from R.H. Source: Google Dec 25 2022

"Message by Stephanie Hale... I like Dr. Marek. He explains his care in detail. Very professional, caring, and kind."

5.0 Review from S.S. Source: Google Dec 25 2022

"Dr Merek is the best. He has a great bedside manner. Takes time to answer all questions."

5.0 Review from G.W. Source: Google Nov 25 2022

"Very impressed with Dr. Merick and the facility. The nurse staff was professional and friendly. Dr. Meeick was knowledgeable and professional. Would definitely recommend."

5.0 Review from J.B. Source: Google Nov 25 2022

"First off, I am a 57 year old, female, who has never had a colonoscopy before. So this was basically a consultation to go over any issues that I may be experiencing before the procedure. dr. Marek was very patient and not rushed as some doctors are when you are trying to explain issues you may be having. he was very thorough in asking initial questions and follow up questions to the problems I told him I was experiencing. I have not had my procedures Done yet, but they are scheduled. Overall, I would recommend Dr. Marek. He made me feel comfortable and at ease."

5.0 Review from B.B. Source: Google Nov 25 2022

"Dr Shannon Marek recently performed a colonoscopy for me August 30, 2021 and did an excellent job. Now (Nov 15, 2022) my primary doctor sent me to Dr Marek to investigate a high bilirubin count that showed up on my Annual Physical. Dr Marek discussed what he wanted to do just to make sure we explored all possibilities of what could be causing this issue. Was very laid back and not rushed. Answered all my questions. Great experience."

5.0 Review from A.D. Source: Google Nov 25 2022

"Great help!"

5.0 Review from V.P. Source: Google Nov 25 2022

"Dr. Marek is a wonderful doctor, very caring. He answers all questions and is very attentive. I highly recommend him!"

5.0 Review from L.M. Source: Google Nov 25 2022

"Dr. Marek and his team were friendly and thorough. I feel all my needs will be taken care of."

5.0 Review from L.M. Source: Google Nov 25 2022

"Excellent first visit. It was very informative."

5.0 Review from J.H. Source: Google Nov 25 2022

"Fast friendly service , More importantly Peace of mind Job well done to you and your staff ."

5.0 Review from D.H. Source: Google Oct 25 2022

"Wouldn’t go anyplace else! I started with Dr. Marek and will continue even though I live 3 hours away."

5.0 Review from B.W. Source: Google Oct 25 2022

"I love Dr. Marek and his office staff! They always take good care of me and my husband!"

5.0 Review from C.I. Source: Google Oct 25 2022

"Dr. Marek is a very kind professional individual."

5.0 Review from I.H. Source: Google Oct 25 2022

"Dr. Marek and his staff are attentative, friendly and knowledgeable!"

5.0 Review from P.T. Source: Google Oct 25 2022

"The staff has always been friendly and competent. Time management is great. I appreciate Dr. Marek's great bedside manner and of course his skill in what he does!"

5.0 Review from S.B. Source: Google Oct 25 2022

"I am very pleased with the services provided by Dr. Marek. I like his staff and the office and other facilities are very clean. Anytime I have called I have not had to wait on hold and am directed appropriately to the correct staff member. Both I and my husband both see Dr. Marek."

5.0 Review from M.Y. Source: Google Oct 25 2022

"His nurse always calls me back when I have an issue and he always listens and addresses my concerns. I have had colonoscopies and endoscopies. He is amazing."

5.0 Review from M.B. Source: Google Oct 25 2022

"Best experience with a procedure with a Doctor that I have ever experienced"

5.0 Review from L.C. Source: Google Oct 25 2022

"Very nice Dr. Informative and polite. This was my first visit."

5.0 Review from J.H. Source: Google Oct 25 2022

"Very professional, caring and thorough"

5.0 Review from J.G. Source: Google Oct 25 2022

"We had an awesome experience with Dr. Shannon marek. my daughter needed attention and he got to her and put in a peg tube. he took care of it immediately awesome."

5.0 Review from A.S. Source: Google Oct 07 2022

"I highly recommend Dr. Shannon Marek, the attention of the Doctor and his staff is first world,,,, thank you very much"

5.0 Review from B.P. Source: Google Sep 25 2022

"Dr Marek took plenty of time to listen to me and review my history and symptoms, discuss everything, and come up with a plan. Great experience!"

5.0 Review from J.C. Source: Google Sep 25 2022

"Dr. Marek listens to your concerns in a very intent intent manner. He offers the patient with deft information and plausible treatment methods."

5.0 Review from B.C. Source: Google Sep 25 2022

"If you’re looking for a fantastic gastrointestinal specialist,, I’d like to recommend Dr. Shannon Marek. He has offices in both San Marcos and New Braunfels TX."

5.0 Review from R. Source: Google Sep 25 2022

"Very articulate doctor with good bedside manner would highly recommend Dr Marek"

5.0 Review from J.M. Source: Google Sep 25 2022

"Everybody was courteous and the facility was top notch,the procedure went well and the results were good no problems at all.Dr.Marek covered everything start to finish. Thanks"

5.0 Review from J.M. Source: Google Sep 25 2022

"Very friendly and easy to talk to. Very professional!"

5.0 Review from C.P. Source: Google Aug 25 2022

"He is a great listener and isn't quick to throw medication at a thing. He is friendly and professional. I would highly recommend him."

5.0 Review from B.S. Source: Google Aug 25 2022

"I had a very positive experience. I will be going back to Dr. Marek in the future ."

5.0 Review from P.L. Source: Google Aug 25 2022

"The staff at Christus Santa Rosa were professional and friendly. Dr. Marek was with me right away. Dr..Marek was also there when I woke up. He has a calm and reassuring bedside manner; and my exam went without a hitch, and with better than expected results."

5.0 Review from T.P. Source: Google Aug 25 2022

"Great Doctor, patient and caring. Would definitely recommend Him. His Staff also are absolutely great."

5.0 Review from N.G. Source: Google Aug 25 2022

"I was very pleased with all aspects of my visit and with Dr Marek. Thank You for being my doctor & being such a blessing!"

5.0 Review from M.M. Source: Google Aug 25 2022

"Dr Marek takes a personal interest in his patients He cares about them not only feeling better but reaching total remission. The nurses and staff are always so nice and always helpful. God bless you all."

5.0 Review from L.S. Source: Google Aug 25 2022

"Very pleased with the procedure and the staff along with Dr. Marek."

5.0 Review from J.P. Source: Google Aug 25 2022

"Awesome doctor. If you need to this procedure done he is awesome"

5.0 Review from K.K. Source: Google Aug 12 2022

"Dr.Marek always does an amazing job of finding out what is wrong and coming up with the best possible solution ms. The best GA ever."

5.0 Review from C.S. Source: Google Jul 25 2022

"I have been a patient of Dr.Marek for quite a few years and am totally satisfied with him.He is very easy to talk to and explains things very clearly.You always come away feeling that he really cares about you and how you are doing."

5.0 Review from A.S. Source: Google Jul 25 2022

"(Translated by Google) I highly recommend Dr. Shannon Marek the attention of the Doctor and his staff is first world,,,, thank you very much (Original) Recomiendo muchisimo al Dr. Shannon Marek la atencion del Doctor y su staff es de primer mundo,,,,muchas gracias"

5.0 Review from T.S. Source: Google Jul 25 2022

"Great Doctor"

5.0 Review from J.K. Source: Google Jul 25 2022

"I have been seeing Dr. Marek for several years now. He is friendly, professional, efficient and thorough. I highly recommend him and his practice for anyone seeking a great Gastroenterologist."

5.0 Review from A.S. Source: Google Jul 24 2022

"I highly recommend Dr. Shannon Marek the attention of the Doctor and his staff is first world,,,, thank you very much"

5.0 Review from P.D. Source: Google Jun 25 2022

"The entire colonoscopy experience was so professionally handled and the staff was amazing. Could not be more pleased with Dr Marek and the Christis staff"

5.0 Review from U.A. Source: Google Jun 25 2022

"I always get nervous and uncomfortable when having to talk with any Dr. About having a medical procedure done because I’m sure we all know there’s always a chance a complication may occur. But with Dr. Marek , I feel completely comfortable when he explains the procedure and the temperament on how he treats his patients just assured my faith in him caring for his patients and well being is sincere."

5.0 Review from D.A. Source: Google May 25 2022

"Dr. Marek and his staff consistently provide excellent care. Dr. Marek has an excellent bedside manner with his patients."

5.0 Review from C.M. Source: Google May 25 2022

"Knowledgeable, professional, and displays concern for patients."

5.0 Review from C.S. Source: Google May 25 2022

"Dr. Marek is a wonderful and professional physician. He explains everything too you and talking to him is like talking to a good friend. You don’t leave his office not knowing what he just said, he explains it all from beginning to end (no pun intended) he speaks to you in plain English.This sounds old school but Dr Marek has a firm hand shake which means to me I can trust him and you should too."

5.0 Review from B.P. Source: Google May 25 2022

"Dr. Marek has been helping me for over five years. I always feel better after any treatment or consultation with him. He's a very professional yet personable position. I trust him implicitly greatly appreciate the help I've received from him"

5.0 Review from B.S. Source: Google May 25 2022

"The Dr. Marek and the staff at Christus Santa Rosa are friendly, professional and strive to keep you comfortable. Dr. Marek is also great at laying out medical terms and options so you as a patient understand."

5.0 Review from C.D. Source: Google May 25 2022

"The staff and Dr Marek were all great at putting me at ease and before I knew it the colonoscopy was over."

5.0 Review from C.G. Source: Google May 25 2022

"Very excellent care was provided me by Dr. Marek and all those on his professional staff. Everyone was kind, considerate, and very knowledgable about their work. I feel 100% confident in planning any future care with Dr. Marek and his very competent staff."

5.0 Review from C.L. Source: Google May 25 2022

"Dr Marek is an excellent Dr. I highly recommend him! I have brought two issues to him that other doctors didn’t understand. He has helped me tremendously."

5.0 Review from D.P. Source: Google May 25 2022

"Others have praised Dr. Marek and staff more eloquently in the past but they have consistently take care of my every need and concern over the decades."

5.0 Review from D.L. Source: Google May 25 2022

"Great people to deal with 😉,I highly recommend them, this is my second time around."

5.0 Review from D.R. Source: Google May 25 2022

"Dr Marek has been taking good care of our family for some time now. He and his staff are very thorough and take time to explain every procedure. I highly recommend for you digestive issues!"

5.0 Review from D.R. Source: Google May 25 2022

"Dr. Merek and his staff are wonderful. I was treated with care and respect."

5.0 Review from E.H. Source: Google May 25 2022

"I was in and out unlike some doctors were ghey place you in a room and make you wait an extended amount of time. Doctor was to the point and informative. Im glad im in his care."

5.0 Review from G.L. Source: Google May 25 2022

"Wonderful and helpful staff. They take their time and answer all your concerns and make you feel welcome."

5.0 Review from J.C. Source: Google May 25 2022

"I love Sr. Marek, hes very compassionate and caring and always very detailed on whats going on. Couldn't have asked for a better doctor."

5.0 Review from A.A. Source: Google May 25 2022

"I was very nervous about having my procedure, but Dr. Marek took the time to answer all of my questions and address all of my concerns during my initial visit. The day of the procedure, he again asked if I had any questions or concerns and he explained the process with great care. I also appreciated the rapport between the hospital staff and Dr. Marek. They worked so well with each other and made sure I was comfortable every step of the way. Thank you for making this process so easy and stress-free! I wouldn’t trust my care to anyone else!"

5.0 Review from A.D. Source: Google May 25 2022

"Seem very confident and likable"

5.0 Review from A.P. Source: Google May 25 2022

"Dr. Marek and the nurses, anesthesiologist and staff are top notch. Everyone is super professional, has a great bedside manner and they go out of their way to make you feel comfortable and cared for."

5.0 Review from J.S. Source: Google May 25 2022

"Caring physician let me talk and listened to my ailments. Set our next course of action. Instant respect."

5.0 Review from K.S. Source: Google May 25 2022

"Dr. Marek is talented AND has a sense of humor!!!"

5.0 Review from K.K. Source: Google May 25 2022

"Dr.Marek always does an amazing job of finding out what is wrong and coming up with the best possible solution ms. The best GA ever."

5.0 Review from M.J. Source: Google May 25 2022

"Highly recommend. He listened to me and treated me like a human not a number"

5.0 Review from M.O. Source: Google May 25 2022

"The doctor was very professional and thorough. We were running late for showing up at the wrong office location and we were kindly accommodated."

5.0 Review from M.D. Source: Google May 25 2022

"Dr Marek takes a personal interest in his patients He cares about them not only feeling better but reaching total remission. Plus he works with you to try to get the best treatment that your insurance will cover to reach that goal. Kimberlee Doran"

5.0 Review from T.S. Source: Google May 25 2022

"Dr Marek is very personable, professional and thorough. In this age of so much stress and confusion, it was so comforting to be in the hands of someone I could completely trust. Highly recommend!"

5.0 Review from W.S. Source: Google May 25 2022

"This Doc has the perfect personality and demeanor to get you to Think. I question everything... and, he is sharp enough to not intimidate but to guide one through all of the peaks and valleys of your problems. I probably shouldn't mention this but he reminds me a lot of my son, who is also a doctor."

5.0 Review from S.G. Source: Google May 25 2022

"Dr. Marek and his staff are so caring! Dr. Marek listens and allows me to relay to him what is going on. Thanks Dr. Marek and your staff!"

5.0 Review from T.B. Source: Google May 25 2022

"No one in their right mind would rave about having a colonoscopy however if you must I can not say enough positive things about Dr. Shannon Marek, his crew of nurses and the facility. His bedside manner and sense of humor is wonderful. His staff are very caring, helpful and very positive. The procedure was uneventful and went very fast. The prep however was a pain in the butt no pun intended. I am very fortunate to have Dr. Marek as one of my doctors. I highly recommend him."

5.0 Review from S.S. Source: Google May 25 2022

"Dr. Marek is a wonderful doctor. He is honest and to the point without being rude or pushy. He truly cares for his patients."

5.0 Review from R.M. Source: Google May 25 2022

"Dr. Shannon J. Marek is attentive and caring. He took time to listened to me even after he knew he was going to have to send me to a surgeon. He is a rare, compassionate Doctor."

5.0 Review from R.R. Source: Google May 25 2022

"Best GI care I've had. The Doctor paid attention to what I had to say, was engaging and friendly. His staff is much the same."

5.0 Review from P.T. Source: Google May 25 2022

"Dr. Marek is absolutely outstanding. One of the few doctors that actually take the time to spend with their patients. Dr. Marek is extremely knowledgeable and has a great sense of humor. I would recommend him to anyone in need of a Gastroenterologist -"

5.0 Review from P.T. Source: Google May 25 2022

"I had the best care with Dr. Marek's staff,and his personal care from the beginning. I was scared only thinking of the procedure I had to have. Having the reassuring talk with the Dr beforehand, and the experience preoperative, during,and after care was more than I expected, or could've asked. So..thanks again!"

5.0 Review from O.B. Source: Google May 25 2022

"Dr. Marek is caring and kind and so is his staff."

5.0 Review from C.P. Source: Google Sep 25 2021

"Dr. Marek is an excellent physician. He always great people with a smile and takes the time to listen. He share genuine concern for his patients and their health. Dr Marek that take time explain any situations and treatment plan in plain words, without condescension."

5.0 Review from D.I. Source: Google May 25 2021

"Dr. Marek is the best doctor I have had in many, many years. He listens and genuinely cares about his patients. He takes the time to make sure you are comfortable with your treatment and care."

5.0 Review from C.M. Source: Google May 25 2021

"Great Doctor & staff"

5.0 Review from C.S. Source: Google May 25 2021

"Dr Marek MD and his staff are the most personable, compassionate, informative healthcare team I have encountered since moving back to Texas. Gentle in nature and thorough in ability and patient and family centered care. My husband was so comfortable and impressed with the team that when it came time for his colonoscopy, he requested to be referred to Dr Marek MD."

5.0 Review from C.L. Source: Google May 25 2021

"Knowledgeable and thorough. Fantastic bedside manner. Takes his time and discusses your issues, goes over treatment plan at your pace, and ensures you have a thorough understanding before leaving. His staff is extremely courteous and just as professional. Highly recommend!!!"

5.0 Review from D.M. Source: Google May 25 2021

"Dr. Marek did my colonoscopy almost 10 years ago, and I was very pleased with the results. I am happy to know that he'll be doing the procedure again. His assistant is also very knowledgeable. She explained everything to me. I got the info she shared with me on paper so if I have questions, I can call her."

5.0 Review from D.T. Source: Google May 25 2021

"Dr. Marek is an excellent doctor. He is very easy to talk to. I would highly recommend him."

5.0 Review from H.S. Source: Google May 25 2021

"Dr. Marek gave me great thorough care. I am happy things turned out as they did and for his explanation of my results and his recommendations. I just haven’t received results of the capsule study though. Hope to hear from them soon with those results"

5.0 Review from 1.D. Source: Google May 25 2021

"Dr. Marek is a great doctor. He explains everything to you and makes you feel very comfortable."

5.0 Review from A.V. Source: Google May 25 2021

"Dr. Marek is very professional, knowledgeable, empathetic and extremely thorough. He has been proactive in my treatment and this has blessed us with peace of my mind."

5.0 Review from B.F. Source: Google May 25 2021

"Would recommend Dr. Marek & his staff to others. In fact, he also took care of my husband. By far, Dr. Marek & his staff are outstanding, professional, and sincerely care about their patients. If I could I would definitely give them WAY MORE than 5 Stars."

5.0 Review from B.B. Source: Google May 25 2021

"Dr. Marrek was my Dr. Yrs ago! He figured the problem out and has been doind day surgery ever yr. He goes in my throat and stretches my esophagus. Very good Dr! Great bed side matter...if you need any of these or other question just call them! Great Dr"

5.0 Review from B.B. Source: Google May 25 2021

"I absolutely love Dr. Marek! I moved to Texas from Colorado last year and was worried about finding a gastro Dr. that would be as good as the one I had there. Dr. Marek has exceeded all my expectations and has done a great job of helping me stay stable and comfortable managing my Crohn's. He always answers questions and never makes me feel belittled when I ask a question that is kind of dumb. Both in person and virtual appointments he has been kind and present. You know you have his full attention when he is with you and you know he cares about your health."

5.0 Review from A.G. Source: Google May 25 2021

"Dr Marek is the best!!"

5.0 Review from A.H. Source: Google May 25 2021

"Dr. Marek is easy to talk to while explaining what is going on and made me feel comfortable, which is so important to me. Although I am a new patient he seems to be thorough and accommodating to extenuating circumstances. Mariah is awesome also! Everyone at the facility was friendly and extremely helpful. I would highly recommend and I am glad he is my doctor!"

5.0 Review from A.L. Source: Google May 25 2021

"Actually it’s Susan truly felt respected and cared for ."

5.0 Review from J.M. Source: Google May 25 2021

"Doctor Marek is great, he cares for his patients and he loves Veterans."

5.0 Review from K.P. Source: Google May 25 2021

"Dr. Marek and his staff are always so pleasant, make you feel very much at ease and cared for. Dr. Marek takes the time to discuss and/or answer any concerns."

5.0 Review from K.W. Source: Google May 25 2021

"Such a awesome doctor,he gave me a lot of info on how to take care of myself. Thank you Dr Marek."

5.0 Review from J.Y. Source: Google May 25 2021

"The entire experience was exceptional. First of all, when I was received from the waiting room for the procedure, every staff member was upbeat, cheerful, and friendly. Everyone knew exactly what they were doing, explained what their role was to me, and made me feel as comfortable as possible. When I met with Dr. Merak before and after the procedure he was cheerful, knowledgeable, and friendly. I was extremely impressed with everyone’s professionalism combined with warmth and friendliness; which greatly reduced anxiety and stress. My personal thanks to the entire staff for the great treatment they provided me."

5.0 Review from N.G. Source: Google May 25 2021

"Dr Marek is one of the best Gastroenterologist I have visited. Very nice, Knowledgeable and easy to talk with."

5.0 Review from M.J. Source: Google May 25 2021

"Dr Marek is professional with a wonderfully caing attitude about your care and needs. He tells you everything that is going on with you and your health issues and the procedure that is going to be performed. It is very hard to find a doctor with Dr Marek's pleasnt personally and genuine interest in your well being. He will forever be my doctor."

5.0 Review from L.M. Source: Google May 25 2021

"I had forgotten when had test done or who with but when my heart Dr set me up for some test it was Dr Marek happened to be the same one used several years before what relief he already had my records . Great staff to."

5.0 Review from M.B. Source: Google May 25 2021

"Dr Marek is always professional, yet caring. You don’t feel like just another patient with him, but like a person to him."

5.0 Review from L.T. Source: Google May 25 2021

"Was a very professional and caring experience. Dr Marek explained everything that was going to happen. His staff were so nice. Took very good care of me."

5.0 Review from T.P. Source: Google May 25 2021

"Very friendly staff at the front desk. Nice facility in New Braunfels. Dr. Marek was kind and informative."

5.0 Review from T.H. Source: Google May 25 2021

"Very knowledgeable. She didn’t treat me like family. She treated me with respect and kindness. Much better than the way family treats me. Got knee cortisone shots in my knee. No an unpleasant experience. I would recommend their staff highly."

5.0 Review from V.H. Source: Google May 25 2021

"He is very friendly, he will actually speak to you and answer any questions you have."

5.0 Review from S.M. Source: Google May 25 2021

"Dr. Marek is a good physician he cares about the patient as if you was part of his family. Most of all he is very honest and cares about the well-being of his patients on a professional-level."

5.0 Review from S.B. Source: Google May 25 2021

"Dr. Marek is amazing!! He really listens to the concerns you have and makes you feel confident in the decisions he makes. The staff there is very pleasant to work with! Love it there"

5.0 Review from R.L. Source: Google May 25 2021

"Dr. Marek solved issues I had suffered with for years, that many other doctors never did! He listened and was very thorough in the tests he ordered. I feel better than I ever have and am so grateful for his wisdom and dedication."

5.0 Review from R.G. Source: Google May 25 2021

"He is a great doctor. He takes time with patients to explain things. I'm taking two medication pretty expensive he help me to apply for programs that help me. When I call the office because I need to see him they give me the appointment I don't have to wait like other doctors. The staff are great very helpful . They give you a chance to explain why you there in the office. some other office you don't even have a chance talk they think they know everything. I think I'm alive because of him."

5.0 Review from P. Source: Google May 25 2021

"Very complete conversation. Understood what was required of me. Not a pleasant experience in the preparation of this procedure, but I feel comfortable with the Doctor who will complete it."

5.0 Review from L.L. Source: Google Jan 13 2021

"If I could rate Dr. Marek higher, I would. I went in to his office extremely nervous but he made me feel at ease by the time I left his office. I knew I was in good hands when he said "have a blessed day." That spoke volumes to me!"

5.0 Review from D.B. Source: Google May 25 2020

"Great Doctor! Listens and provides recommendations that make sense. My wife and I both highly recommend Dr Marek."

5.0 Review from E.M. Source: Google May 25 2020

"Dr. Marek was extremely nice!"

5.0 Review from G.P. Source: Google May 25 2020

"The man has style, and is a fantastic Dr."

5.0 Review from H.D. Source: Google May 25 2020

"Highly professional. Was interested in what my concerns were and addressed them. I highly recommend Dr Marek"

5.0 Review from H.M. Source: Google May 25 2020

"Dr. Marek is great. Staff is wonderful."

5.0 Review from B.C. Source: Google May 25 2020

"I was very pleased with my first appointment with Dr. Marek. He is very polite and professional, and he listened to me explain the problems I’ve been having with kindness and understanding. I feel very secure with Dr. Marek as my physician and would highly recommend him."

5.0 Review from A.F. Source: Google May 25 2020

"If I could rate Dr. Marek higher, I would. I went in to his office extremely nervous but he made me feel at ease by the time I left his office. I knew I was in good hands when he said "have a blessed day." That spoke volumes to me!"

5.0 Review from K.M. Source: Google May 25 2020

"Dr. Marek had the best bedside manners of anyone I've ever visited. He made my mother feel very safe and cared for. Excellent treatment of us!"

5.0 Review from T.T. Source: Google May 25 2020

"Dr Marek, I found to be kind, caring and quick on his decision making"

5.0 Review from W.B. Source: Google May 25 2020

"Dear Dr. Marek: I am responding to inform everyone of the exemplary way you provided service to me. Everything in my dealings with you exceeded my expectations, from your timeliness, professionalism, disposition, thoughtfulness, humility, patience and especially your willingness to be sure if we have questions or concerns that you took the time to address them to my satisfaction. I will gladly recommend you to anyone who needs services such as yours and I will be back as needed. Thank you very much and may God bless you. Sincerely; Bill"

5.0 Review from V.E. Source: Google May 25 2020

"great experience for my 90 year old dad. Thorough examination and they were able to expedite upper endoscopy for the following day. Results have been great - appreciate the concern all expressed to my dad - made him feel more comfortable. Highly recommend Dr. Marek and his team."

5.0 Review from S.M. Source: Google May 25 2020

"Great staff, great care, and promptly responds to questions and providing results of test. I can't ask for more from a healthcare professional!"

5.0 Review from R.S. Source: Google May 25 2020

"Dr Marek is great. He had an aggressive approach - not just 'try these antibiotics' and now my chronic problem has been solved in weeks!"

5.0 Review from R.M. Source: Google May 25 2020

"After countless different doctors, multiple emergency room visits and thinking I was going crazy I finally found a doctor who took the time to listen and run a scan that I had never heard of. The staff was amazing and the dr was understanding and didnt rush me through my appointment. I am so happy with the service I received from this office."

5.0 Review from N.S. Source: Google May 25 2020

"I’ve even a patient of Dr. Mareks fr about 5 years. He is an outstanding young Dr. in every way. Procedures he has performed in every instance been spot on!"

4.0 Review from J.H. Source: Google May 25 2020

"In spite of a significant wait I would absolutely recommend seeing Dr Merick in the New Braunfels location at 2028 Sundance Parkway. Although we were not told a reason, Dr Merick himself apologized on 3 occasions for the wait. The Medical Assistant and front office followed with their own apologies. Dr. Merick is totally engaged while in the exam room. All of my questions were answered and I left feeling confident in the upcoming procedures."

5.0 Review from D.B. Source: Google May 25 2019

"Dr. Marek is a great guy. He listens very attentively to concerns and is truly interested in his patients and how they are doing."

5.0 Review from C.J. Source: Google May 25 2019

"Dr. Marek has to be one of the best doctors I have ever been around. In my opinion, he is very competent and takes time to explain things."

5.0 Review from H.F. Source: Google May 25 2019

"Dr. Marek is quite knowledgeable and one of the best listeners I know of. He is sharp in diagnosing issues and respectful in the way he deals with People/patients. Dr, Marek always has responded well to my concerns and questions. I have never felt rushed with him."

5.0 Review from A.M. Source: Google May 25 2019

"Dr. Marek was one of the few doctors I've met who sat down and talked with me for a while to chat about my health and questions. Without feeling like I was being rushed. He was friendly and kind.. a great disposition. I'd recommend him for sure."

5.0 Review from J.G. Source: Google May 25 2019

"Dr. Marek is very personable, easy to talk to. Very thorough."

5.0 Review from J.P. Source: Google May 25 2019

"Great office staff and Dr. Marek is extremely nice and very informative."

5.0 Review from N.E. Source: Google May 25 2019

"Glad I was able to find Dr Marek for my GI needs. Very competent and left his office feeling hopeful in my care."

5.0 Review from M.S. Source: Google May 25 2019

"Very satisfied with Dr. Marek...his bedside manner, & his professionalism. I would highly recommend him to others."

5.0 Review from W.Q. Source: Google May 25 2019

"He is a great Doctor. Friendly and knows his profession."

5.0 Review from W.R. Source: Google May 25 2019

"Very efficient support staff and clarity of communications by Dr. Marek. I'm very pleased with the whole experience."

5.0 Review from S.U. Source: Google May 25 2019

"Excellent experience, Dr. and staff are friendly and personable. Highly recommend."

5.0 Review from T.C. Source: Google May 25 2019

"Dr Marek is the best GI Dr in town! I highly recommend his office."

5.0 Review from N.L. Source: Google May 25 2019

"Dr. Marek was fantastic dealing with a 92 year old patient. Would recommend him to everyone!"