Ronnie Fass MD, FACP, FACG

Ronnie Fass, MD, is the Medical Director of the Digestive Health Center at the MetroHealth Medical Center, Cleveland Ohio. He is also a tenured professor of medicine at Case Western Reserve University.

Dr. Fass did his internship and residency in internal medicine at the University of Arizona Health Sciences Center, where he later became a Chief Resident. He then completed a fellowship in gastroenterology at the University of California in Los Angeles where he focused on GI motility and disorders of brain-gut interaction.

Dr. Fass has served in leadership positions in many societies. He is the former treasurer of the American Neurogastroenterology and Motility Society as well as the chair of the education committee. The former member of the Nominating Committee of the Upper GI Section and Neurogastroenterology and Motility of the American Gastroenterological Association (AGA). He has served as the chair of the Functional Esophageal Disorders committee for Rome IV, Membership committee of the American Neurogastroenterology and Motility Society, Practice Parameter Committee and Audio Committee of the American College of Gastroenterology (ACG) and the Publication Committee of the American Society of Gastrointestinal Endoscopy (ASGE). He has also served as a member of the management committee of the journal Neurogastroenterology and Motility.

In addition, Dr. Fass has served as a member of many committees in different GI societies. Currently Dr. Fass serves as a member of the World Gastroenterology Organization (WGO) Guidelines and Publications committee, member of the ACG Digital communications and publications committee, member of The American Foregut Society (AFS) research committee, member of the International Society of Diseases of the esophagus (ISDE), education committee and the ACG GI on demand task force steering committee.

Dr. Fass has also served on the ANMS/EMS consensus group for Refractory GERD and as a core team member of the Chicago Classification 4.0. He is currently a member of the EndoFlip experts panel working group, Rome V for functional esophageal disorders, Lyon 2.0 for GERD metrics (core member) and the multi-society guidelines for endoscopy credentialing. (Representative of the AFs). Currently, he is leading the AFS consensus group for Nonerosive reflux disease (NERD).

Dr. Fass is the editor-in-chief of the Journal of Clinical Gastroenterology and the Journal of Neurogastroenterology and Motility. Dr. Fass is a frequent lecturer and presenter and is a reviewer for more than 70 journals. He is and has served on the editorial board of 27 journals.