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.
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"After a referral from Wylie ER for Dr Miller, the appointment went very well. Dr Miller is very knowledgeable and easy to talk to. I really appreciate all the staff at his facility they too were very kind and professional. I am pleased with the results."
"One of the best all around doctors!!"
"I have been a patient of Dr Mark Miller for many years and I'm always so grateful for all he has done for me. He is very professional and caring, he takes time to listen, give advice, to explain and to answer my questions."
"Been seeing Dr Miller for 23 years. Outstanding GI doctor"
"Professional, timely, extremely helpful in explanations, etc etc :) :)"
"Dr Miller has been taking care of me.for 20 years. Enough said except I love him and his staff."
"One of the best doctors around!! So caring and truly taking care you and helps you understand your health and potential issues! I can’t recommend him enough to everybody. Thank you Dr Miller for your care!"
"Love Dr. Miller! He’s knowledgeable and kind and he or his staff always gets back to you to answer your questions. Definitely recommend."
"Dr Miller and staff are very nice and professional. Dr Miller is very easy to talk to and explained everything in detail. Great visit!!!"
"This doctor is wonderful, very knowledgeable, thorough and down to earth with completely easy to understand explanations. If you're having problems, in the end then this is you're go to guy!!!!@"
"Hands down, one of the nicest doctors I’ve ever met. Very personable and friendly. He gave a thorough explanation of what would happen during the colonoscopy. His office uses a different company to find the prep meds in order to get you the best price. This worked great for me bc my insurance company refused to pay, but I only ended up paying $60 when it would have been almost $300. Recommend."
"Excellent dr. Explains to your understanding ‼"
"I don’t like going to see doctors! Dr. Mark Miller puts me at ease right away. He came into my exam room fully knowledgeable about my health history, like I am his only patient. It is 2023 and he brought up a procedure I had with another doctor in 1998. He seems very knowledgeable about Crohn’s Disease and other digestive disorders. I highly recommend him as a gastroenterologist!"
"Awesome doctor"
"Dr. Miller and staff were all very nice and professional office was clean. I would recommend his services."
"Great doctor 👏."
"I have known Dr. Miller for over a decade. He is very nice, intelligent and cares about his patients. He doesn't over do but, he does what is needed to make an accurate diagnosis."
"Dr. Mark Miller is the best. Highly recommend, been to him several times. He’s so considerate and sensitive to your needs. Always go above and beyond to make sure your comfortable all while getting the job done in a timely manner."
"I have been seeing Dr Miller for several years. He is very professional and knowledgeable in his specialty. He is very easy to talk to and communicates very well."
"Dr Miller and his staff are the BEST! I have been seeing Dr Miller since the late 90’s. Very Professional!"
"I'm a registered nurse and a patient of Dr. Miller. He has the best bedside manner of any Doctor out there. He is extremely knowledgeable, kind, and funny. He will be my GI Dr. Until I'm an old man.."
"I really like Dr. Miller because he is so personable. I’ve had multiple occasions when he has called me at home to check and see how I was doing. There at not a lot of doctors that do that anymore!"
"Great doctor. One of the best."
"I have been a patient of Dr Miller for several years and will be for many more. He and his staff provide excellent care, on target diagnosis and always make time to explain all details. Wonderful doctor and team."
"I love how Dr. Miller listens to all of your symptoms and concerns and go over everything with you, he explains with details and even with a picture! I highly recommend him."
"I’ve been going to Dr. Miller for 30 years. He’s the best! He’s extremely kind and very knowledgeable. I highly recommend!"
"Condolration with Dr. Mark Miller was informative and put me at ease for upcoming prcedure, I highly recommend Dr. Miller"
"Dr Miller and his staff always make me as comfortable as possible. They’re friendly, professional, and provide as much information as is needed to feel confident about the procedure. I’ve seen him for the last three colonoscopies and wouldn’t consider going to anyone else."
"Dr Miller is hands down the best GI doctor. I have switched doctors several times because I just wasn’t happy with their care but Dr Miller is it for me. I have Crohn’s as well as another rare disease that causes GI issues so I need a GI doc that can handle my issues and he is the one!"
"I found Dr Miller very knowable and willing to listen to my concerns. I wo I would recommend him to anyone."
"Been with Dr Miller 25 years. He is an excellent GI physician. Highly recommend."
"Been going to Dr. Miller for years. Very personable. Always have great conversations with him. Highly competent Dr. Highly recommend!"
"Very helpful and excellent office personnel."
"It's hard to describe when a physician is great at his job and a joy to see, but thus has been my experience for over 10 years with this fine gentleman and I encourage anyone with the need to not hesitate to choose this practice!!!!!"
"Great doctor and great nurse. Hard combo to find. Super responsive duo. Dr Miller has been treating my UC for 18 years. He allows you to have an active part in your treatment options. Wouldn’t see anyone else. Very caring."
"Perfect with all my needs. He found out so much for me. He was so thorough in finding so much that I feel he saved my life. Thank you Dr. Miller."
"I had a great experience visiting Dr Miller, he was very professional, attentive to m needs and concerns and not n a rush to get me n and out of his office"
"Dr Miller is so caring. He cares about his patients health and will recommend ways to get there. He explains in detail."
"Dr. Mark Miller is phenomenal. Kind, compassionate, bed side manner that surpasses none! Office staff is superb."
"Dr. Miller listens and takes time to explain in detail all my questions"
"Dr Miller is personable and even better he doesn’t keep his patients waiting so long like most physicians do. He cares about the patients and the caregivers and their time too."
"I have been a patient of Dr. Miller for several years. He is very personable and easy to discuss whatever problems you might have. I would highly recommend him to anyone."
"I really appreciated dr. Mark Miller for all his time and patience and explaining things in detail I recommend him highly if you are looking for GI doctor you will not regret it"
"Positive experience with being scheduled and seen by Dr. Miller. Would definitely recommend."
"Dr. Miller has been treating members of our family for over 20 years. He is a wonderful doctor and person. Truly cares for his patients. Very kind while being very honest about any issues."
"I have known Dr Miller for many years. He is compassionate, listens carefully to your problems and gives proper care"
"What a down to earth physician. Very easy to talk to and Dr Miller made me feel like a family member. Definitely will use him in the future."
"Dr. Miller is an awesome doctor! He has helped me out tremendously over the years. I initially went for a second opinion and am so glad I did. My health issues are minor compared to some others with the same condition. He always asks for my input and preference on treatment plans and leaves the aggressive factor up to me. He fully explains everything in detail and always makes sure that I fully understand everything that is going on. He is also very easy to speak with and has a great bedside manor. He has never made me feel belittled or dumb for asking questions. If you need a GI doc then he is the go to guy as far as I’m concerned!"
"Dr Miller is awesome! Down to earth guy, takes his time explains everything so you can understand it. And a car guy what could be better? LoL"
"Dr. Miller and staff are amazing. Extremely knowledgeable and talks to you as if you’re a personal friend!"
"Doctor Miller, his staff, and DHAT have been a large part of my life for the better part of 20 years now. They are my gold standard and so far no one has come close."
"Great man Dr Miller is very attentive and friendly. Very knowledgeable and he is my favorite!!!"
"Dr. Mark Miller is very professional. He has helped me tremendously and I'm very grateful!"
"I have known Dr Miller for over thirty years . He is my chosen one when it comes to my colonoscopy .. lol Always willing to answer all my questions . He is a very kind , caring, professional Doctor . I have referred many friends and family to him .."
"Dr. Miller is one of my 2 most favorite doctors. Qualified/ caring/ professional/ personable. I recommend him to everyone whether they need hom or not!!!"
"I will never go anywhere else! Dr. Miller and his staff are the best! I always feel completely comfortable around them! ❤️👍"
"I have been a patient of Dr. Miller for 6 years and have always been happy with my treatment. Like any good group, they are busy. However, that has not impacted the quality of level of care I've received from Dr. Miller or his staff."
"I couldn’t ask for a more personable and caring doctor. They should all take notes from him!"
"The staff was amazing! Dr. Miller was very personable and genuinely cares about his patients! He took the time to explain the entire process/procedure from start to finish. I'm extremely glad that I chose Dr. Miller to do my procedure."
"Dr. Miller was great! He listened to what I had to say and worked with me on the next steps instead of just dictating what I needed to do next."
"Dr Miller is very thorough and caring. Office staff and everyone were amazing! Can’t wait to see him in 10 years!!!"
"Dr. Miller has been my doctor for over 15 yrs and absolutely NO complaints He cured my HEP C!! 15 Years ago and still cleared and no need for 2 yr visits. Thank you doctor Miller!!"
