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. Drewitz is a physician I would recommend to all. He is genuinely concerned about his patients and provides professional expertise in his field. One can have a complete trust in the knowledge and ongoing care he provides. All his staff has been extremely pleasant and helpful, always every time."
"The entire process from scheduling to the procedure was seamless. Every staff member along the way was kind and helpful. The communication was perfect and I was given information every step of the way. Dr. Drewitz was great- his bedside manner is amazing, even though I only spoke with him for a few minutes. The building and all the rooms were spotless- super clean. I was very impressed the entire process for a test (colonoscopy) that I really didn’t want to do. Highly recommend Dr. Drewitz and AZ Digestive Health!"
"It’s was my time going over there. They staff were very nice and friendly the doctor who did my procedure was very nice and gets me out on time. I used to take my family and friends to other places they never finished that quickly next time I will bring them to your office for the procedure. Keep up the good work. 🌹🌺"
"Even though this office on east Coronado is farther away, I always come here. The staff is incredible. Very professional, knowledgeable, and so very friendly. The doctors are wonderful. I have never had a bad experience at this facility. I would highly recommend."
"I was more than pleased with my office visit with Dr. Drewitz he took the time to explain my lab results and assured me that the numbers are much better now, I must say I felt fortunate from the pleasant reception upon my arrival to virtually no wait time to the good news in reference to my lab results what more could I ask for."
"I never have to wait past my appointment time with Dr. Drewitz. He is thoughtful with my questions and comes up with solutions. I am happy to have found him after moving to the West Valley. Highly recommended!"
"Dr Drewitz had great bed side manner and was very reassuring of my procedure. He was with me when I awoke and I felt very well taken care of. I would highly recommend him."
"Dr Drewitz is very easy to work with, he listens to his patients concerns and looks to uncover the problem to correct it instead of guessing. His staff is amazing as well very polite and professional"
"This was my first experience with a digestive health doctor and procedure. I am extremely happy with how I was treated. I like Dr Drewitz’s calm demeanor and tone. I felt very confident in his care and comfortable . I definitely recommend!"
"Great doctor head no problems NFC theologist a little bit kind of split my lip. But the doctor was great billing department can't get by insurance correct."
"I am completely satisfied with the care provided by all the Clinic staff. Both the Anesthetist and Dr. Drewitz were very helpful and attentive during my procedure. Excellent human quality!!!"
"The ladies their we're very very nice and caring. They explained what was going to happen and what to expect. The doctor was a really nice man also. He came to me before my procedure and was polite respectful. Everything went fine and no problems. They did a wonderful job."
"Dr. Drewitz is the best. He is kind, caring and very easy to talk to. He takes time to listen and does not make an appointment feel rushed. The office staff has also been great."
"Very very very happy with Dr. Drewitz and his staff. Had 2 procedures recently that were flawless. Every person that worked with me was fantastic. Thanks!"
"I was quite nervous with my procedure. Dr Drewitz and his staff were very comforting and I am very glad I went to them. Highly recommend his practice."
"Everyone was polite and pleasant. I really liked Dr. Drewitz. My disappointment is that I’m still miserable. I’m taking the meds as prescribed, not eating after 5-6, being careful what I eat, and it still hurts when I swallow. I don’t feel there was not enough further instructions and options for resolving my issue."
"From intake to discharge and everything in between, the staff was friendly and understanding of me feeling grumpy and nervous. 😬. They made me smile 😊."
"We have been patients of Dr Drewitz since 2007 and we are so grateful to have him. He is kind, compassionate and an excellent doctor. We always feel confident having our procedures done in his center and his staff is wonderful also."
"Dr Drewitz and staff are very efficient and kind. My visit was completed in a timely manner. Dr Drewitz was very thorough and explained medical issues in a way that any lay person would understand. I was treated by him and staff with dignity and respect"
"I am a new patient of Dr. Drewitz - he was very professional and took time and care to understand my current health issues. I look forward to having Dr. Drewitz as my Gastroenterologist."
"Dr Drewitz has been my GI Dr.for over 10 years. I had a few GI Doctors in the past and He is the Best in my Opinion. He prescribed a new medicine for my ulcerative colitis when my past medication was not working for me. He is very caring and thorough Dr. I have recommended many people to him with G.I. issues."
"I was scheduled for a 12:15 pm procedure! Dr. Drewitz met with me prior to my scheduled procedure! He was actually running ahead of schedule and showed compassion and understanding! I was done in about 20 minutes and woke up in recovery! Highly recommend this GI Doctor."
"Excellent service from all the support staff and Dr Druitz. I appreciated the visit from Dr Druitz before and after the procedure. Janet the nurse anesthetist introduced herself and reviewed everything before she and Karen the attending nurse took me back. Everyone was very kind and attentive. The facility is top notch, clean, well equipped and maintained. I’ll be back in 5 years when I’m due for my next colonoscopy. Thanks to everyone for taking such good care of me!"
"Dr. Drewitz listens carefully to concerns and addresses each one thoughtfully. He is a good, non-judgmental listener who does not rush you. He stays up-to-date on his craft. I highly recommend him."
"Dr Drewitz is just wonderful. He's easy to talk to & listens as you try & explain some, at times (embarrassing), things that you either didn't know it could do OR want one's body to do. His staff are pretty great to :)"
"Great Doctor, listen to you and asks you Valuable questions, amazing eye contact with his patients not just typing on the computer like some doctors do."
"I had a great experience at Arizona Digestive health. All of the staff was very thorough and friendly. Dr. Drewitz was very thorough explaining to me how the procedure was going to go and how long the procedure would take. They administered just the right amount of anesthesia to where I had no complications waking up. No grogginess or anything felt great. I would highly recommend them if you're needing to have a colonoscopy or other procedures done there."
"I was referred to Dr. Drewitz by my PCM. Best refferal I could have received. The practice is very thorough, the receptionists are pleasant and helpful, and Dr. Drewitz has a calm but no nonsense manner. Dr. Derwitz explained everything gave me a chance to ask questions and did not rush through my appointment. Overall I am extremely pleased with how I have been treated on several occasions."
"Dr. Drewitz was kind, respectful, and down to earth. I felt very comfortable discussing my symptoms, diagnosis and treatment plan. I highly recommend this provider."
"Dr Drewitz is a great listener, and explains answers to questions fully in an understandable manner. He has a great demeanor with patient’s and is easy to talk to. You feel seen and heard fully."
"I always like my visits to Dr. Drewitz as he is kind, courteous and very helpful. He answered all my questions, and I was very pleased. Thank you Dr. Drewitz for your usual great help."
"The appointment was straightforward and casual. I felt at ease being in "teams" style call being at home. Decisions made and arrangements for surgery arranged separately by scheduling."
"This was my first visit with Dr. Drewitz. I am a new patient. I was very impressed with my new Dr. He was very patient and took the time to listen and helped with my concerns. I was very happy that I found him. Thank you, Natalie Shaffer."
"Thus far the experience has been truly Awesome. Dr Drewitz hears you and shows care for you as a person! I have felt a real trust! He responds to your calls and questions. The staff too has been very friendly and very helpful Amanda and Tanya thank you for caring for me and getting the help I need! Thank you Dr Drewitz til our next appointment!🙏"
"When handling a delicate procedure related to gastroenterology, Dr. David Drewitz is precisely the doctor I want as my ally. Personable, reassuring and warm, it was clear from step 1 that I'd be well taken care of. The entire office handled the procedure professionally and everyone seemed to understand their role. 5 stars across the board."
"On our telemedicine call Dr Drewitz answered all my questions. He gave me valuable advice and was very helpful. He is friendly and makes one feel comfortable. I always enjoy speaking with him. He is a very good doctor. I give him a 10 out of 10."
"When handling a delicate procedure related to gastroenterology, Dr. David Drewitz is precisely the doctor I want as my ally. Personable, reassuring and warm, it was clear from step 1 that I'd be well taken care of. The entire office handled the procedure professionally and everyone seemed to understand their role. 5 stars across the board."
"On our telemedicine call Dr Drewitz answered all my questions. He gave me valuable advice and was very helpful. He is friendly and makes one feel comfortable. I always enjoy speaking with him. He is a very good doctor. I give him a 10 out of 10."
"I had a Colonoscopy by Dr Drewitz last week Dr Drewitz and the entire staff were excellent…. I was extremely impressed how well everyone involved in the procedure handled the experience professionally I will recommend Dr Drewitz to anyone T Ray"
"I just had my first appointment yesterday and he’s demonstrated such a strong sense of urgency and care even prior to our appointment. Thank you so much! I couldn’t be happier!"
"Dr jewett's office when I went for my procedure for a colonoscopy was very warm Pleasant and I can't say how much they made you feel comfortable and explain questions that I have for the colonoscopy they were very thorough and telling me what I wanted to know I can't tell you how oh please I was with his office staff"
"Friendly and efficient support staff, immaculate facility, very prompt scheduling, genuinely empathetic and reassuring manner, literally painless procedure, zero negative after-effects... should be a 6th star!"
"Dr jewett's office when I went for my procedure for a colonoscopy was very warm Pleasant and I can't say how much they made you feel comfortable and explain questions that I have for the colonoscopy they were very thorough and telling me what I wanted to know I can't tell you how oh please I was with his office staff"
"This is my 2nd time coming back to Dr. Drewitz office after 10yrs. The guideline to medication is clearly, doctor office call, texting to reminds me to follow the instruction, see if I have any question, problem. Then came the procedure day, it went smoothly, the hospital was very clean, the nurses was very nice & helpful. I was very relaxed, sleep, they woke me up and it was done. The next day doctor office call to see if I have any issues, which I don't have. I think when we heard of the word colonoscopy, your mind started to wound up, worries, feeling uncomfortable, but if we just follow the guidelines. Know and understand it purposes, preventing 'C.C', I rather get it done than get hit with the surprise. Thank you Dr.Drewitz and the staffs for taking care of me 😊 Update: 8/8/23 doctor office called yesterday, the polyps was benign, doctor want me to return in 10 years. Yay. 🙌"
"Top tier! I cannot begin to tell you the level of professionalism, hands on care and attention to detail that I experienced. If I told you it was like a spa experience you would not believe me, But that is the level of comfort and support that was provided to me by the doctor, esthetician and nursing staff from start to finish!"
"This is my 2nd time coming back to Dr. Drewitz office after 10yrs. The guideline to medication is clearly, doctor office call, texting to reminds me to follow the instruction, see if I have any question, problem. Then came the procedure day, it went smoothly, the hospital was very clean, the nurses was very nice & helpful. I was very relaxed, sleep, they woke me up and it was done. The next day doctor office call to see if I have any issues, which I don't have. I think when we heard of the word colonoscopy, your mind started to wound up, worries, feeling uncomfortable, but if we just follow the guidelines. Know and understand it purposes, preventing 'C.C', I rather get it done than get hit with the surprise. Thank you Dr.Drewitz and the staffs for taking care of me 😊"
"Dr David Drewitz has been my gastro for 13 yrs. I have had several procedures done at Banner Estrella Hospital as well as office visits .. the findings have been well described. Dr Drewitz prides himself on being on time for his patients."
"Everything was excellent. Checking was fast. Doctor responded promptly. My problem was identified and fixed. And best of all it didn't hurt. Thank you!"
"After a CT scan I needed to see a GI specialist. A friend told me he loves Dr Drewitts and highly recommended him. On short notice the office got me scheduled with a terrific Nurse Practitioner and we agreed a colonoscopy and endoscopy were needed due to on going belly pain and other factors. Highly recommend this team!!"
"The office staff are very nice and always are on time ! Doctor Drewitz is always very attentive and helpful! He always takes time to answer all my questions ! He is a wonderful man and very kind !"
"Dr. Drewitz is on time, and more importantly, takes his time with you. He answered all of my questions without rushing me, and is thoughtful and informative. Highly recommended!"
"Dr. Drewitz and his staff are thorough, informative, patient and caring. I would highly recommend them to anyone. They went out of their way to help me with the referrals when I had trouble scheduling them. Thank you!"
"Dr. Drewitz is thorough and kind. He really listens and cares. His office staff were friendly and efficient. Wait times were minimal and appointment scheduling was effortless. I would highly recommend Dr. Drewitz."
"Dr. Drewitz and his staff have always provided the best care. He took his time and answered all my questions. I have recommended him to several friends."
"Dr. Drewitz and his whole team are fantastic. Dr. Drewitz was recommended by my primary care doc (because he’s my doc’s doctor) for an age-based colonoscopy and the process was as painless and smooth as you could hope for. The staff as great, Dr. Drewitz has a great bedside manner and he explained the procedure and results clearly."
"The appointment was good first time he scheduled test for me to find out what is going on. I found him very knowledgeable and shows concern for the patient."
"Dr. DREWITZ and his staff are knowledgeable and efficient. I'm totally satisfied with all of my interactions, and especially pleased with Dr. DREWITZ's thoughtful treatment explanation, because he clearly has a firm grasp of the current best practices in his specialty, while considering my personal medical and overall situation and my individual concerns."
"The office staff are very nice and always are on time ! Doctor Drewitz is always very attentive and helpful! He always takes time to answer all my questions ! He is a wonderful man and very kind !"
"I have Been a patient of doctor drew it for a few years now. I find him to be thorough, very knowledgeable And extremely compassionate. He will sit and listen to your questions and take his time with you and and answer so you can understand. I never feel rushed and I always feel and I always feel I am an important patient. On a scale of 1 to 10 I give him an 11. I would highly recommend him and his office staff."
"Great doctor who pays attention to details and listens to his patients. Acts quickly and communicates frequently regarding test results and prescriptions. Excellent and wouod highly recommend"
"Dr Drewitz is an extremely careful and thoughtful physician. He thoroughly explains his opinion and findings, and takes time to answer questions without making you feel hurried. I'm relatively new as his patient, but compared to other Gastro physicians I've tried. . .i have to say; "he is a good one," that I plan to follow up with for future care."
"Dr Drewitz and his staff are professional, courteous and thorough. He has been my GI Dr for 10 years and consistently explains my health in terms I can comprehend. I don't feel rushed, but heard and respected. I would highly recommend him and his practice."
"Very knowledgeable and helps bring clarity to the issue at hand. Answers all of your questions so it is easy to understand. Suggestions for additional treatment if needed. I would recommend him."
"Dr. Drewitz is extremely knowledgeable. He is a good listener, has a sense of humor and is personable. I would highly recommend him as he is the best gastroenterologist out of my five previous ones."
"First time meeting Dr Drewitz and the staff at Arizona Digestive Health. Dr Drewitz was very personable and I feel like I can trust him. Everyone else was very nice as well"
"I've seen Dr Drewitz 1 time, came to him for a 2nd opinion did not care for the other one I was seeing, so let's see where it goes from here positively I hope"
"Doctor David J. Drewitz Is the best hes been my doctor for almost 2 years he did my colonoscopy I highly recommend doctor David J. Drewitz He is The Best!! Very professional and knowledgeable 👍🏽👍🏽"
"Dr. Drewitz is thorough and compassionate. I have referred him over the years to family members and friends. He is as good as it gets. I highly recommend him. He has never let me down. Much gratitude to Dr. Drewitz for always being caring and guiding me expertly thru my medical issues."
"Kind professional service. In treatment room at appointment time. Clear explanation of treatment not talking over my head. Answering questions with no problem."
"Dr.Drewitz has been my doctor for over 12 years. He is a very compassionate, kind, respectful, and efficient doctor, as well his assistants and office staff. Their work ethic’s are professional and above standards. The F/U patient service check out, is outstanding! What a wonderful experience! It enhances you and the office environment! A Great Team!"
"Dr Drewitz is very thorough and efficient. My grandmother swears he saved her life! My only complaint is the office is very hard to get in touch with and not great about returning calls"
"Dr Drewitz is amazing! He came highly recommended and I am so glad that he is going to be our G.I. doctor. He took the time to answer my questions about my hernia, explain some new developments in colonoscopies, and even went so far as to contact a thoracic surgeon regarding next steps on my hernia. He is an A+ doctor!!!"
"Dr. Drewitz has been my doctor for 14+years and he has cared for me with Compassion through every stage of my health. His care is extended to not only me but to my family as well which speaks to his integrity as a human being and Physician. Thank you Dr. Drewitz for your continued care throughout the complexities of my health!"
"I was referred to Dr. Drewitz, by both of my sister in laws. One of my sister in laws came with me to my consultation with Dr. Drewitz! Upon meeting Dr. Drewitz, I felt very comfortable in his presence. He went over what was already done from previous CT scans, from my previous Dr. He re-assured me he was going to get to the bottom of what was going on with me. Dr. Drewitz is also very humble and kind, I would definitely recommend him!!!"
"I would highly recommend Dr Drewitz and his staff. My experience was a 10 out of 10. Dr Drewitz listened to my concerns, preformed the procedures that I needed and explained the outcome all while being very kind and caring! His staff answered all of my questions in a respectful caring manor!"
"Ever since I began going to Dr Drewitz, I understand my medical issues better and feel that I can make better decisions. I am feeling much better and feel like I now have more choices in my treatment. Dr Drewitz is someone I would totally recommend to anyone in need of his services."
"I have been under Dr. Drewitz’s care for many years. He has always been very straight forward/no BS, which I appreciate. At times the office staff stumbles a bit, but the care from Dr. Drewitz keeps bringing me back."
"Dr. Drewitz he is amazing!!! He listens, he’s direct and thorough these are qualities I think everyone desires in a doctor. Hands down one of my favorites :-)"
"He was recommended by another doctor in whom I have confidence. He has a caring manner in that he appears not to be in a rush and listens attentively. He does not tend to over-treat."
"Dr. David Drewitz is a fantastic MD. He knew exactly what I was saying about my ulcerative colitis and acid reflux. I'm getting a colonoscopy and endoscopy in April, yey."
"I didn't realize the amount of pain I was having from my side, due to my kidney stones. Dr. Drewitz made the procedure smooth and quick. It was as painless as possible. I would recommend Dr. Drewitz to anyone."
"I’ve been going to Dr. Drewitz for about 10 years now. He’s wonderful - a caring & skilled professional with great communication skills. I found his office through a family member & am very happy with the office & medical staff too."
"Dr Drewitz was very understanding about my problem. He got me an appointment for my procedure more quickly than I expected. Thank you so much Dr. Drewttz. I can't wait to be back to normal."
"I have worked with a number of GI doctors over the years and Dr. Drewitz stands out among his peers. He is easy to talk to, shows genuine compassion and understanding, and works with patients to ensure that they are comfortable with his recommended treatment plan."
"Dr Drewitz is an extremely careful and thoughtful physician. He thoroughly explains his opinion and findings, and takes time to answer questions without making you feel hurried. I'm relatively new as his patient, but compared to other Gastro physicians I've tried. . .i have to say; "he is a good one," that I plan to follow up with for future care."
"The experience was great. I went in for an EGD. David Drewitz is very informative and cares. He took the time to explain my situation and what the EGD would find. After the procedure made sure I was ok and explained what he found. I left well informed of what I needed to do to take better care of myself and he let me know what would happen next. I would highly recommend Dr David Drewitz if your looking for a GI. Thank you."
"Dr Derwitz and his staff are very courteous and informative. He explained my diagnosis and treatment thoroughly. I have an existing condition that I did not understand completely. He explained and provided visuals to help me understand the condition and what he could do to treat said condition. The ease of scheduling the upper GI and the care that went in to ensuring that Covid protocols were met was comforting."
"I am a new patient of Dr. Drewitz and only had 1 consult with him and it went very well. As of now I had nothing but a great experience with Dr. Drewitz and all the office staff I have had any dealings with up until this point. I am sure it will continue the same. Joe B"
"Dr. DREWITZ Is Awesome, empathetic and shows compassion for his patience! He's been my GI Specialist for 14+ yrs and has patiently walk with me through very traumatic health experiences. He's very thorough and has never rushed me out of an apt. Dr. Drewitz has advocated for me throughout very hard seasons in my life. He has always shown concern for me as a person and not just the disease I battle with. You won’t be disappointed. ♥️"
"Have been a patient of Dr. Drewitz for 10 years. He is wonderful. He LISTENS to you. He follows up. He doesn't rush your appointment. I suggested I wanted to try a new medication. It wasn't one he typically prescribes. He did research, talked to his colleagues and agreed to let me try it. It worked! I can get an appt with him easily, his staff is wonderful. Love Dr. Drewtiz!"
"Dr. Drewitz is kind, compassionate, and takes his time to explain what he is doing and expecting. He and his office have been on time for at least 5 times my family has been to his office, we have not had to wait longer than 5 minutes. Dr. Drewitz speaks in a way that makes sense to those who don't know exactly what might be ”typical” to him."