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. Source: Healthgrades May 10 2022

"Just moved here and in dire need of gastroenterologist. Dr Miller was patient in listening to my medical history and offering insight. So far very satisfied w our relationship. His office even called to explain recent results of MRI and made sure I understood. 5 stars. "

5.0 Review from P.G. Source: Google May 06 2022

"Very detailed with my results of my MRI and Ultrasound he explained it in a way I could understand it. I’m glad I am under his care."

5.0 Review from D.F. Source: Google Mar 24 2022

"I have been experiencing severe pain in my right upper quadrant since June 2021. I was unable to get a diagnosis through CAT scan, MRI, x-rays from other physicians. Dr. MacCollum had one visit with me, asked many questions, and scheduled me for an endoscopy. Immediately she found a 1 cm ulcer in my stomach and put me on medication to heal it. So within a 2 1/2 week period of time from initial visit to date of endoscopy I was diagnosed. The staff at Arizona Digestive Health were very professional and friendly. The staff at the Arizona endoscopy center, where, Dr. MacCollum performs endoscopy‘s, was the same. I would highly recommend seeing Dr. MacCollum for any gastrointestinal issues you may have!"