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.
"Dr. Dennert was wonderful! Loved her and would absolutely recommend her to others. I really appreciated the way she listened to me and answered my questions. I wanted to have the procedure without sedation and she was great about helping me make that happen. Compassionate, caring physician who is invested in providing great—which is exactly what we all hope for in a doctor. Thank you so much!"
"I have been going to Dr Dennert for quite awhile now. The office staff is fantastic and very friendly. Dr Dennert is the type of doctor who takes the time to make sure you understand and takes the extra step when needed. It is because of her taking that extra step after my colostomy that I found out I had kidney cancer. There is nowhere else I would go and I highly recommend Dr. Dennert all the time"
"I have been going to Dr. Dennert for almost 15 years and have nothing but great things to say about her. She always makes every effort to answer all of my questions, explains the whats and whys on every visit. She is never rushing away from me to the next patient . And, of course, she knows her stuff."
"Dr. Dennert and her staff made this procedure so easy it was like an office visit and it was over. Everyone was very efficient and pleasant. Excellent doctor."
"Dr. Dennert and her amazing staff did an excellent job of making my appointment the best it could be. I highly recommend them, the level of professionalism and care at their facility is the best!"
"I received excellent care from Dr Dennert and her staff."
"I really recommend this place the service is one of the most kind and professional. Congratulations!!"
"I cannot say enough about Dr Dennert and her staff I really was not doing well and they immediately put me at ease and figured out what was going on. I think all of you so much KELLY McCREARY."
"I have been coming to see Dr Dennert since 1996 and she has been an amazing doctor to me for 28 years! She is friendly, honest, caring, compassionate and always has my best interest at heart. The staff including Blanca, Christina and Lupe and all amazing to work with as well! These ladies are always willing to help me schedule appointments or answer any questions I have. I would highly recommend this office to anyone who needs a great Gastroenterologist!"
"The best Dr. I have ever in my live. Thank you."
"Dr Dennert is great. She makes you very comfortable. The procedure was almost effortless."
"She is the best Doctor I have ever had. I feel so safe with her sweet nature and her wonderful professionalism. I could never see anyone else."
"Dr Dennert is friendly and took time to listen to my concerns."
"Dr Dennert is awesome!!! She really listens to you and genuinely cares. Her assistant is great too. I would highly recommend her. I am so grateful I found her. I feel like I can really trust she’ll do whatever is in my best interests."
"Dr Dennert took time to listen to my concerns and to address each one. She is warm and personable. I didn't wait long to be seen and staff were helpful and polite.."
"Such a wonderful doctor! She's professional yet friendly, knowledgeable, and she listens. I feel very comfortable at her office. Her office assistant is also a 10 out of 10. Very efficient and always ready to help. If you are looking for a new gastroenteroligist, I highly recommend Dr Brenda Dennert."
"Dr. Dennert is the best! She listens to you and develops a plan for your care. Her staff is also wonderful!"
"I had the privilege of being under the care of Dr. Brenda Dennert at Arizona Endoscopy Center, and I couldn't have asked for a better experience. Dr. Dennert's expertise and compassion were evident from our first consultation to the procedure itself. She took the time to explain everything thoroughly, answering all my questions and addressing any concerns I had. During the procedure, her skill and precision were apparent, making me feel confident and comfortable throughout. Dr. Dennert's professionalism and genuine care for her patients truly set her apart. I am incredibly grateful for her exceptional care and would highly recommend her to anyone seeking gastroenterological treatment."
"Love her, knows her stuff. What was then, still is "25 yrs running". That's should tell you something... Knowledgeable and Movtivated. Thank you Dr. Dennert"
"Dr. Dennert was very informative about any medical concerns I had with my visit! She made me feel very comfortable!"
"Good experience. Hope I don’t have cancer"
"Excellent, Dr. Dennert and her staff are always professional and helpful. The wait time was within reason and Dr. D is always there to listen and support. She’s one of a kind"
"Excellent, thorough, personable care. I've been seeing her for colonoscopies for 20 years. now I'm scheduled for an endoscopy. She's taking care of me from both ends now!"
"Dr Dennert is one of the best Doctors I/We have ever seen. Been seeing her for years. She is so attentive, caring and patient taking the time with you. Her office staff is also fantastic and attentive. Lupe, Blanca for example. I/We could not ask for a better Doctor and Staff! She has a great personality as well!"
"I trust Dr. Dennert! She and her team are wonderful. Caring and empathetic. The best you could hope for from a medical professional."
"Dr. Dennert and her team are caring and very professional."
"Dr. Dennert was able to see me very quickly about my issue. During my visit she was thorough, seemed genuinely concerned, and took plenty of time to explain my condition and treatments. The staff were very friendly and professional as well. I highly recommend Dr. Dennert and her staff!"
"I don't think most people love the thought of getting a colonoscopy, however if it's your time to get one, I highly recommend Dr. Dennert and her entire team! Incredibly professional while making the uncomfortable, comfortable."
"Dr. Dennert exhibited the right balance in explaining what the upcoming procedures would entail while listening intently to my concerns. Most importantly, she never made me feel rushed or marginalized. Her medical knowledge was “off the charts.”"
"absolutely the best doctor. caring, thorough, exceptionally bright and down to earth. need i say more?!"
"A great experience. I highly recommend Dr. Dennert"
"Dr. Dennert was kind, helpful and professional. I was incredibly impressed with the AEC. Efficiency and helpfulness was a priority. Ester, Stephanie and Julie were wonderful and professional. But kuddos to Melissa.....she deals w/ hungry, hurting and miserable people at 6:30 am..........her smile and consistency are just PERFECT!!"
"I LOVE Dr. Dennert. She's kind, compassionate and an excellent physician. What more could you ask for?"
"Friendly efficient staff"
"Dr. Dennert is the most understanding doctor that i have had. She listens carefully and together we are managing my Crohn's disease. The office staff and medical assistant Blanca are very kind and also mindful of people's time. I've been to some doctors where they had me waiting in the front office and exam room for over an hour! Not at Arizona Digestive Health!!! I'm so grateful to have found such a caring and compassionate doctor to help me manage my condition."
"Dr. Dinnert, is very good, nice and she has deep concerns about my situation."
"Excellent staff. Responsive to needs, and they listen to you. Dr. Dennert has an amazing bedside manner and her staff mirror her caring attitude. I highly recommend her and am thankful I was recommended to her."
"Dr. Dennert is an excellent practitioner. She is extremely knowledgeable and has a very comforting and confident manner which puts a patient at ease. I have always felt that I was in great hands in her care and I would recommend her to anyone."
"Dr. Dennert is very thorough. I truly appreciate that she leaves no stone unturned."
"Brenda dinnertime has been so helpful being with me Rachel M. Peat for the last 2 years Thankyou from the bottom of the ❤️ 💙 💜 💖 💗"
"Brenda dinnertime has been so helpful being with me Rachel M. Peat for the last 2 years Thankyou from the bottom of the ❤️ 💙 💜 💖 💗"
"Great customer service"
"Great doctor and staff!"
"Very caring professional doctir"
"I love DR Dennert, I’ve been seeing her since 2007. She is the best!!!!"
"Dr. Dennert is a very capable, incredible physician. She is personable warm and straight forward."
"Dr. Dennert is wonderful and the staff are very nice. She’s very thorough and takes the time to discuss everything."
"My preliminary meeting with Dr. Dennert was very helpful. Everything was explained clearly to me, which put to rest any anxiety I might have had."
"She was very professional and I feel she was interested in me and my concerns."
"Dr Dennert took so much time talking and explaining the illness to me. It was like she didn’t have any other patients waiting. Then she called me personally the next day. I was very impressed!"
"I've been a patient of Dr. Dennert's for two years. She has been very responsive and caring each time I've seen her. I call her "my GI doctor"!"
"Very good experience. Professional support staff and Dr. Dennert was very good at listening to history and symptoms and concerns. Explained what tests would be and did not seem rushed. Five stars!"
"I'm an OR nurse so pretty critical. I found Dr. Dennert to be professional, thorough and very easy to talk to. She did not immediately order meds and tests but took the time to review my medical history before determining a plan of care. It's so refreshing to meet a provider who treats the patient as a person rather than a number. I will highly recommend her to all my friends."
"Excellent rapport with patient. Very friendly and takes time to listen to your concerns. She is very knowledgeable and I highly recommend her as a doctor."
"I love Dr. Dennert, she listens to your concerns and gives you valuable information. She makes you feel comfortable and ensures that you are taken care of properly."
"Brenda Dennert is doctor very dedicated"
"I love Dr. Dennert, she listens to your concerns and gives you valuable information. She makes you feel comfortable and ensures that you are taken care of properly."
"I really enjoy interacting with Dr Dennert. She is very wise and compassionate and offers a range of suggestions to improve on my health."
"She is a wonderful doctor."
"Dr. Dennert is a consummate professional. She’s extremely knowledgeable and conveys a caring attitude toward her patients. I can’t provide a higher recommendation…she’s the best!!!"
"I love Dr. Dennert, she listens to your concerns and gives you valuable information. She makes you feel comfortable and ensures that you are taken care of properly."
"Dr Dennert is always patient and thorough. She explains the information so it's is easily understood and makes me feel as ease."
"Dr. Dennert is the most understanding doctor that i have had. She listens carefully and together we are managing my Crohn's disease. The office staff and medical assistant Blanca are very kind and also mindful of people's time. I've been to some doctors where they had me waiting in the front office and exam room for over an hour! Not at Arizona Digestive Health!!! I'm so grateful to have found such a caring and compassionate doctor to help me manage my condition."
"Great understanding dr. Leased she works with me on my issues"
"Very comfertable"
"She's amazing! She actually takes the time to listen."
"Dr. Dennert was very thorough and explained my procedures so I understood what to expect."
"I would never see anyone else, Dr Dennert and her staff are unbeatable. I feel so safe with her. Thank Dr Dennert for your outstanding service"
"Dr.Dennert was very professional, and the staff was super friendly and helped me with my insurance questions. I highly recommend their office."
"Doctor dennert is a wonderful physician and I highly recommend her, she listens to your concerns and is very thorough."
"My procedure was very professional. I was treated very well and would definitely recommend to others."
"Dr Dennert always takes quality time with me. She is interested in every aspect of my life not just my health and she gives me great feedback concerning our conversations."
"Wonderful to talk with the doctor"
"Dr. Dennert is the best!!! She explain thoroughly before my procedure so I felt so comfortable. Everything went well and fast. I totally recommend her."
"I have been seeing Dr Dennert as needed for years and I appreciate her professionalism, knowledge and kindness ."
"I could say that Dr. Dennert made me feel very comfortable on my first visit. Her professionalism and carry was definitely showing in my time spent in the office. There was no waiting time whatsoever and the staff was very friendly."
"Dr Dennert is always such an understanding and compassionate provider. She listens to your concerns and provides the best care. Her staff is stellar in always getting an appointment quickly and they are always friendly. I highly recommend Dr. Dennert for any GI concerns."
"Dr Dennert is not just great in her technical skills such as a thorough diagnostic she’s very empathetic and caring which is great!"
"Dr Dennert is not just great in her technical skills such as a thorough diagnostic she’s very empathetic and caring which is great!"
"Dr Dennert is always such an understanding and compassionate provider. She listens to your concerns and provides the best care. Her staff is stellar in always getting an appointment quickly and they are always friendly. I highly recommend Dr. Dennert for any GI concerns."
"I really like Dr Dennert. I never wanted to go to a gastroenterologist until I met Dr. Dennert. She’s calm and is willing to explore options for me."
"Dr Dennert is amazing. She takes the time to understand you as an individual patient. She doesn’t rush you along like another number. So kind and professional as well."
"My experience with Brenda was positive. She took the time to explain everything. I found her to be compassionate and caring to my situation. Brenda very thorough."
"Everyone in the office is very professional and nice. Dr. Dennert is an amazing doctor."
"She is just amazing in every way"
"Dr. Dennert made me feel very comfortable and at ease. She talked with me not at me. If you should need to a GI specialist, I highly recommend Dr. Dennert."
"Dr Dennert removed anxiety by actively listening and engaging with questions. Truly know I’m in good hands, highly recommended her and her staff!"
"Fantastic"
"This was my first visit. She answered all my questions and really made me feel very comfortable.I would highly recommend her to all my family and friends"
"Dr. Dennert was informative regarding test results and answered all of my questions. Made me feel at ease and followed up with more information by phone."
"Dr. Brenda Dennert was very professional and answered all of my questions. I am looking forward to creating a good relationship with her. Is nice to be confortable with your doctor, it makes the process easier."
"No judgement s or lectures. She actually listens and obviously cares. I have always felt very comfortable."
"So glad I found Dr. Dennert! She made the process of having my first colonoscopy and throat scope smooth and painless and very comforting. She explained everything thoroughly of what to expect and the follow-up visit was just as great! I wish she could be my regular family practitioner since I think she’s the best Dr. I’ve dealt with in a long time! I highly recommend her!!"
"Dr. Dennert I'd 100% fantastic in every way!"
"I so highly recommend Dr. Dennert. Her bed side manner is caring, compassionate. Listens and answers the questions that I can understand. I never feel rushed she takes the time I need."
"Friendly and Professional. I was instantly at ease by Dr. Dennart's knowledge and most importantly her willingness to LISTEN."
"My experience with Dr Brenda Dennert was so easy and comfortable. Considering this was my first colonoscopy, Dr Dennert and the facility made the procedure very comfortable. I’ve recommended Dr Dennert to my family and friends."
"Dr. Dennert is simply wonderful. She is patient, kind, listens well and is an informed practitioner. During my appointment, I felt like I was speaking with a partner in my healthcare versus someone who simply wanted to prescribe me a pill. I highly recommend her and her staff!"
"Very kind and compassionate with my specific needs. We came up with a wellness plan immediately together that was not too overwhelming"
"I really like Dr. Dennert. She took time to review past screenings and give me information on how to help my digestive problems without surgery"
"Very prompt kind of ice staff. Dr. Dennert was very caring, approachable, and wonderful at explaining my procedure and answering any questions I had."
"Very informative and welcoming."
"Dr. Sennett was fantastic. She took the time to listen and go through all previous tests and appointments I had prior to ending up in her office. I would recommend her to any of my family and friends looking for a GI specialist!"
"Staff provided great care...Dr Dennert,as usual, provided outstanding service and care."
"My wife and I have been patients of Dr. Dennert for over a decade. We have always been very satisfied with her insights, staff, and services."
"Very professional, felt at ease at all times. Would recommend her to anyone!"
"Enjoyed my appointment with Dr. Dennert and felt very comfortable around her. She was very attentive to my needs and very professional"
"Great doctor. Listened to my issues and explained clearly what I was experiencing. Did not push for any procedures and told me that if symptoms change to call back. Very knowledgeable and made me feel comfortable. She will be my go to for any future issues."
"Procedure went so smoothly. All staffs were so kind!"
"Dr. Dennert is extremely knowledgeable and highly skilled, but she also takes the time to listen to you and understand. I feel very well cared for when I am seeing her. I recommend Dr. Dennert without any hesitation."
"Great communication and overall experience."
"Dr. Brenda Dennart and Staff we very friendly and professional. Dr. Dennart is very tentative and knew everything about me, very caring and listened to my concerns."
"Dr Brenda has a conservative approach that I appreciated. I didnt feel rushed and I felt heard. I also appreciated reading material since there is too much information on the internet."
"Dr .Dennert as always was caring ND patience with me and my concerns I will continue to her patient thank u doc."
"Dr. Dennert is great! She has a great personality and she explains things very well. She has sent me on a great path to get me where I need to be!"
"I've been to this office for two different procedures and both times was treated warmly and professionally. I felt as though I had Dr dennard's direct attention and she gave me all the time I needed to ask whatever questions I had."
"Awesome Doctor, very thorough. Great office staff. Dr Dennert listened to my issues prescribed treatment in a timely fashion 👌"
"Dr Brenda has a conservative approach that I appreciated. I didnt feel rushed and I felt heard. I also appreciated reading material since there is too much information on the internet."
"Dr. Dennert is caring, compassionate, and very knowledgeable . I am so thankful to have her as my doctor."
"From the staff to the physician - very friendly warm environment allowing you to be heard as a person and not as a number."
"Explain everything and more very helpful"
"Dr Brenda has a conservative approach that I appreciated. I didnt feel rushed and I felt heard. I also appreciated reading material since there is too much information on the internet."
"Dr. Dennert is a wonderful Doctor! She is knowledgeable, caring, and extremely well prepared. She answered all my questions, reviewed my medical history and provided very timely and appropriate medical advice. I was very satisfied with the treatment I received at her office and would highly recommend her to friends and family."
"From a recent trip to Nica, I definitely needed some piece of mind. Dr. Dennert was very professional and made me feel comfortable when talking about uncomfortable things ! 🙏✨"
"The staff stayed right on time for the appointment. They were all very professional. It was a very pleasant experience with all staff,and the facility. Dr. Dennert is very good. Thank you for helping me get through a procedure no one wants to go through!"
"Dr. Dennert and her office were fantastic. Dr. Denmert listen well and explained everything in detail. Office staff was professional and friendly."
"Dr. Dennert communicates clearly and is easy to talk to. I felt that I was in very competent and experienced hands which gave me peace of mind."
"Dr. Brenda Dennert is very perfesional she takes her time and talks with you. I would recommend Dr. Dennert to anyone."
"Dr. Dennert is the most understanding doctor that i have had. She listens carefully and together we are managing my Crohn's disease. The staff and medical assistant Blanca are very kind and also mindful of people's time. I've been to some doctors where they had me waiting in the front office and exam room for over an hour! Not at Arizona Digestive Health!!! I'm so grateful to have found such a caring and compassionate doctor to help me manage my condition."
"Dr. Dennert is such a kind, well mannered physician who really spends time with you to ask you all about your digestive health as well as any problems you are having she should be aware of. Some doctors just seem like they want to get you in and out as soon as possible, but exhibit no warmth, compassion, humor, or personality. Not Dr. Dennert! I'd highly recommend her!"
"Dr. Dennert made me feel right at home during my visit. She answered all my questions and concerns. She provided great information and advice. I'll add her to my go to doctor list."
"Everything was explained"
"Dr Dennert is a GI doctor everyone could be extremely happy to see. It was my first visit and from the minute I made my appointment speaking to Lupe I knew I was in good hands. What a sweet, understanding and compassion person. At my appointment Dr Dennert took a lot of time with me having me explain my problems and answering all my questions in a manner that I could completely understand. I found her extremely competent and caring. I have already given her name to a dear friend. I totally appreciate all Dr Dennert did for me."
"Dr Dennert was very thorough and had a nice bed side manor that means a lot to me.she explained everything she was going to due and always kept asking me for any Questions..So now just waiting for my procedure and go from there…"
"I have been seeing Dr Dennert for many years and am very pleased with my care. She takes time with me and her staff has always been easily accessible, friendly and wonderful to deal with. Great care."
"I have been a patient of Dr Dennert for 20 years. The one thing that I worry about is that she will retire some day. Dr Dennert is a great doctor who actually listens to you when you are telling her what medical problems you are having. She is sincere and cares about your health. I have referred my friends to her and they are very pleased with her care."
"She and her staff are wonderful!"
"First time visit to Dr Dennert. She was very thorough and had a great bedside manner. I would highly recommend her to anyone looking for a GI doctor."
"Great doctor. She save my life!!!"
"Dr. Dennert has been my doctor for over 20 years. She is excellent and I highly recommend her. She listens to you and gives you as much time as you need to explain your symptoms. Her staff is friendly and caring as well."
"Excellent customer service, very professional and explains throughly."
"Every time I have been at Dr. Dennert’s office, everyone is super nice and welcoming. As for the Doc herself, always super nice and understanding, listened to my concerns and has always made sure to have them addressed. When I was looking for a gastroenterologist I wanted to make sure that I found a kind doctor. And I gotta say, I found one."
"Dr.Dennert and her assistant Blanca are the nicest people ever!! Dr. Dennert listened and took time to evaluate my concerns . She gave logical advice !!"
"No judgement s or lectures. She actually listens and obviously cares. I have always felt very comfortable."
"She made me feel really comfortable and at ease. Her office staff were amazing as well."
"My mom had an appointment with Dr. Dennert. While the wait time was a longer than I would have liked (but par for the course with doctors!), the nursing staff was kind and helpful. Dr. Dennert took her time with my mom and got a full history. When we left, we understood what the doctor believed/concluded about my mom's condition and the next steps in her treatment."
"Dr Dennert is excellent. I have seen her for the last 10 plus years. She is thorough and takes time to answer all the questions."
"Very caring staff and Dr. Dennert is wonderful!"
"I had to look for gastroenterologist because I was not happy at all with the doctor I had. Particularly when I learned that he doesn't meet with patients any longer. His assistant does. So, I was very skeptical when I came to my first appointment. Needless to say that now I'm extremely happy with Dr. Brenda Dennert. She listens, advise suggest and discuss the process with me. I personally think that many doctors have the knowledge, but they are not very good with relating to their patients or capable of advising and guiding their care. Dr. Dennert should have six stars."
"Excellent rapport and bedside manner"
"Had my first visit with Dr. Dinnert and she was easy to talk to. She really seemed to listen to what I had to say and actually read the paper work I had filled out. I did not feel rushed at all. It was a good experience and I would certainly recommend her to others."
"Appointment in a timely manner. Caring team."
"I have gone to see Dr Dennert for 20 years. I find her to be caring and very knowledgeable. I recommend her to everyone. The office staff are caring as well."
"Doctor Dennert is so professional and personable to her patients. She has a true gift in helping you feel comfortable and confident discussing your health care needs. I think she is a true gift to the medical profession as an advocate for her patients. Just a wonderful doctor and person."
"Dr. Brenda Dennert is a great provider and very professional.I’m very happy with my services with her. Need a colonoscopy? See Dr. Dennert."
"Is a wonderful experience they treating you very good all the people who work in there is very professional I really and highly recommend Dr Brenda Dennert. M.D"
"Dr Dennert at Arizona Digestive Health has her team firing on all cylinders. Staff is friendly, knowledgeable, and efficient. Brenda’s presence is very comforting and she asks great questions and provides helpful solutions. A positive model for all doctors."
"Dr. Dennert is always knowledgeable, kind, and caring. She takes the time to really listen to her patients, which is rare these days."
"Dr. Dennert is very professional, she is very caring and thorough with a pleasant personality. I would certainly recommend her to anyone looking for a good GI doctor!(9"
"Excellent doctor!!!"