Hani Abdallah Zamil, MD earned his medical degree in 1996 from the University of Jordan in Amman, Jordan. His postdoctoral training includes an internship, residency and chief residency in internal medicine at Brown Medical School in Providence, Rhode Island in 2002. Dr. Zamil completed a fellowship in gastroenterology and hepatology, and advanced endoscopy at Harvard Medical School/Beth Israel Deaconess Medical Center in Boston, Massachusetts in 2008. His past experience includes academic institutions and private practice. He served as an Assistant Professor of Medicine at Brown Medical School and Baylor College of Medicine. He also served as the Assistant Director of the Internal Medicine Residency Program at Memorial Hospital of Rhode Island / Brown Medical School. Most recently, Dr. Zamil earned experience in private practice in the Clear Lake area of Houston. He joined the University of Texas Medical School at Houston as an Assistant Professor of Medicine in 2012 to pursue his passion in academic medicine, research and education.

Dr. Zamil’s clinical and research interests are gastrointestinal motility disorders and functional gut disorders. Dr. Zamil will establish a multi-disciplinary center for management and research of gastrointestinal motility disorders in the University of Texas Medical School at Houston. He is interested in evaluation and management of swallowing disorders, gastroesophageal reflux disease and functional dyspepsia, gastroparesis, intestinal bacterial overgrowth, bowel habits problems like diarrhea and constipation and pelvis floor and incontinence disorders. Dr. Zamil is experienced in gastrointestinal motility testing. This includes esophageal and anorectal manometry, breath tests, pH testing, gastric emptying, colonic transit time, defecography and gastrointestinal endoscopy and colonoscopy.  Dr. Zamil is very interested in researching the effectiveness of the role of complementary and alternative medicine in functional gut disorders.

Dr. Zamil has extensive experience in endoscopy including endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic ultrasound (EUS) with all its applications to various gastrointestinal diseases. Dr. Zamil is also interested in celiac disease and has extensive experience in celiac and other malabsorption and autoimmune syndromes. Dr. Zamil will establish the only celiac disease center in Houston. The center will provide comprehensive care for celiac disease patients including nutritional guidance. The center will collaborate with other centers around the nation to conduct research and implement the state of the art diagnostic and therapeutic approach to celiac disease management and treatment.


Bachelor of Medicine, Bachelor of Science
University of Jordan, Faculty of Medicine
Brown University
Jordan University Hospital
Harvard Medical School - Beth Israel Hospital
University of Arkansas for Medical Sciences