Dr. Hector Rodriguez-Luna is a certified specialist in gastroenterology and hepatology with 17 years of experience. He obtained his medical degree from the Ponce School of Medicine in 1999 and completed his internal medicine residency at Ochsner Foundation Hospital in New Orleans. Further advancing his expertise, Dr. Rodriguez-Luna pursued fellowship training in gastroenterology, liver diseases, and liver transplantation at the VA/Good Banner University Medical Center and Mayo Clinic in Arizona. His broad knowledge encompasses gastroenterological conditions, including acid reflux, colon cancer prevention, inflammatory bowel disease, liver disease, and pancreaticobiliary disorders. Dr. Rodriguez-Luna performs various procedures such as upper endoscopy, BARRx ablation, colonoscopy, small bowel enteroscopy, capsule endoscopy, and ERCP. His work has been featured in esteemed international publications, including the American Journal of Transplantation, Current Opinion in Infectious Diseases, Digestive Diseases, and Sciences, Clinics in Liver Diseases, and Minerva Gastroenterologica e Dietologica (Italy). Dr. Rodriguez-Luna is a proud member of prominent medical organizations, including the American College of Gastroenterology, the American Society for Gastrointestinal Endoscopy, and The American Association for the Study of Liver Diseases.
Best Gastroenterologists in Phoenix
Handpicked Top 3 Gastroenterologists in Phoenix, Arizona. All of our gastroenterologists actually face a rigorous 50-Point Inspection, which includes customer reviews, history, complaints, ratings, satisfaction, trust, cost and general excellence.
We have a strict “No Pay to Play” policy.
HECTOR RODRIGUEZ-LUNA, MD REVIEWS
Dr. Hector Rodriguez-Luna is the most caring, most brilliant, professional Doctor we have ever been blessed to meet. He is thorough in explaining everything. His medical knowledge is unsurpassed. He is by far the Very Best Doctor whose care we've ever had.
So far my experience with Dr. Rodriguez has been very positive. He was very informative and had a great bedside manner. He seemed very genuine about wanting to get to the cause of my issues and help me feel better.
Dr. Rodriguez-Luna was very personable and discussed the procedure thoroughly. He didn’t appear to rush the conversation and considered any questions I had regarding the procedure. I am comfortable with my decision to complete my colonoscopy.
Help others: Click Here to send review or send us your review to reviews@threebestrated.com. Negative and positive review will be used for rating. Make a difference.

Dr. John J. Wells completed his internal medicine residency at the University of Michigan Medical Center after graduating from George Washington University in Washington, DC. He further advanced his specialization by undertaking a gastroenterology fellowship at the same institution. Known for his attentive approach, Dr. Wells diligently listens to his patient's concerns and provides them with the utmost care. He creates a comfortable environment that encourages patients to share their issues openly. With his patient and thorough communication style, Dr. Wells takes the time to address all doubts and questions. If you are experiencing any stomach-related problems, scheduling an appointment with Dr. John J. Wells is recommended.
Specialty:
Insurance Accepted:
Contact:
Working Hours:
Sat & Sun: Closed
TBR® Inspection Report:
JOHN J. WELLS, MD - ARIZONA DIGESTIVE HEALTH - PHOENIX, AZ REVIEWS
Yes, he was the perfect physician for the event!! Infact, he's my choice again!! My husband, Dr Sibley referred me!! He's a great guy too!! Can't wait!! My four day count down starts Saturday!!
The office staff was professional and kind. Dr Wells is amazing!
John Wells is always thoughtful and courteous every time I have met with him.
Help others: Click Here to send review or send us your review to reviews@threebestrated.com. Negative and positive review will be used for rating. Make a difference.

Dr. Mark D. Gulinson is a highly skilled gastroenterologist and hepatologist practicing in Phoenix. He obtained his MD from the University of Colorado Health Science Center in Denver. Dr. Gulinson completed his fellowship in gastroenterology at the University of California, Irvine, further enhancing his expertise in the field. With over 30 years of experience, Dr. Mark has established a reputation for providing exceptional gastrointestinal care to his patients. Dr. Gulinson specializes in diagnosing and treating various gastrointestinal conditions, including ulcerative colitis, peptic ulcers, diverticulosis, and irritable bowel syndrome. His extensive knowledge and expertise enable him to offer comprehensive care tailored to each patient's needs. One of Dr. Mark's areas of expertise is performing colonoscopy procedures, a vital tool in diagnosing and preventing colon-related diseases. He ensures accurate and effective evaluations through his meticulous approach and advanced techniques. In addition to his practice in Phoenix, Dr. Mark D. Gulinson also provides his expertise at another medical facility. With his commitment to delivering top-quality care, patients can trust Dr. Gulinson to provide them with the greatest medical attention and treatment options.
Specialty:
Insurance Accepted:
Contact:
Working Hours:
Sat & Sun: Closed
TBR® Inspection Report:
MARK D. GULINSON, MD - ARIZONA DIGESTIVE HEALTH REVIEWS
Dr Gulinson is very professional. He has performed all three of my colonscopies. He clearly explains the procedure and how he will care for any findings. The staff working with him is excellent.. personable.. knowledgeable and professional. Proficiency has increased with each visit. I highly recommend Dr Gulinson.
Dr Gulison is an excellent doctor who listens carefully and takes the time to get the answers you need. He helped my girlfriend figure out her problem that she's been dealing with for a long time. She now lives her life normally and is so grateful for finally having a doctor not only find the cause of her problem, but actually help her manage it! He is now my Dr and recommend him 100%!
I met Dr. Gulinson last week for the first time. He let me tell him my about my stomach issues I've been having for about 4 months. I wasn't rushed and he listened. He had quite a few questions he asked me afterwards. I felt he was thorough and I have my next appointment scheduled. He was recommended to me by both my mom and aunt.
Help others: Click Here to send review or send us your review to reviews@threebestrated.com. Negative and positive review will be used for rating. Make a difference.