Request an Appointment
Mark Miller, M.D.
Gastroenterologist

About Mark Miller, M.D.
Board Certified: Gastroenterology
Education and Training
- Fellowship: Baylor University Medical Center (Dallas, TX)
- Residency: Northwestern University (Chicago, IL)
- MD: University of Oklahoma, College of Medicine
- Undergrad: Westminster College (Fulton, MO)
Professional Affiliations
- American Gastroenterology Association
- Texas Society of Gastroenterology and Endoscopy
- American Society of Gastroenterology and Endoscopy
- Texas Medical Association
Facility Affiliations
- Texas Health Presbyterian Rockwall
- Preston Crossing Endoscopy Center
Locations

Digestive Health Associates of Texas: Garland
View Location
Best gastroenterologist ever!
Highly recommend Dr. Miller. Very knowledgeable and explains the situation. His staff is very friendly and helpful.
Everything went well. Everyone kept me comfortable and informed. I especially love the follow-up suggestions only for me. Dr. Miller has been my colonostophy doctor for many years, and I plan to continue using him.
Dr miller has done 8 colonoscopy on me. Never had a problem attentive to my needs. He is top notch.
Absolutely nothing but good things to say about Dr. Miller. I have been a patient for years, and have always been very happy with the entire staff and facilities.
Staff were friendly and accommodating for my dad. Doctor was resourceful and helped my dad with the swift procedure. We thank the doctors and every staff there for working hard and taking care of their patients.
I have been with Dr. Miller for 20 years. Always has been a wonderful and very comforting experience via his knowledge and bedside manners. Thanks to the Miller team. 👍🏻
Dr Miller is great! He is thorough and compassionate. I wouldn’t use anyone else’s
Best doctors ever! Thank you Dr Miller and Dr Ashley for taking such good care of me. Your report was very thorough and I appreciate that.
I’ve been a patient of Dr. Millers for a long time now. He does his job well, informed me of his findings and made sure that I was ready before and after my operation. Well done Dr. Millers
Dr Miller has been my doctor over 30 years. I trust him with my gut. Lol!
Dr Miller is an amazing doctor
Very personable. Makes you feel you are in good hands. Every knowledgeable.
Dr Miller you and everyone at your office was very nice and I really appreciate the kindness Y'all made me feel like I was at home, you did everything in a timely manner and I will seem like I was in and out of there within an hour. Thank you very much again, I appreciate you !
Dr. Miller is direct, thorough, and understanding. His "bedside manner" suits me perfectly. I have been seeing him for 30 years. Always serving my needs.
Dr Miller spent time understanding the issues, explaining possible causes and involving me in the plan and next steps. The endoscopy staff in Rockwall were fantastic and explained everything and made me feel very comfortable. I don’t recommend GI problems but if you’ve got them, Dr Miller and teams make everything “flow” easily.
Dr. Miller and the BSW staff at the Surgicenter were exceptional, as usual. The professionalism is stellar from check in, to prep, to procedure, and to the discharge.
Dr Miller and his staff provide compassionate, timely and experienced medical services. Dr Miller is the BEST.
Dr. Mark Miller has a warm, friendly bedside manner, and excellent communication skills to both listen attentively and speak clearly with his patients. He has excellent medical knowledge, and is supported by a strong office staff. All in all, Dr. Miller and his team made the experience of having a periodic colonoscopy a positive experience.
Dr. Miller and his office staff are top notch! If you’re in need of his services you won’t regret seeing him. He's the best in the Gastro field as far as I’m concerned.