Dr. Fass is the treasurer of the American Neurogastroenterology and Motility Society as well as the chair of the education committee. He is a member of the Nominating Committees of the Upper GI Section and Neurogastroenterology and Motility of the American Gastroenterological Association (AGA). He is also the chair of the Functional Esophageal Disorders committee for Rome IV. Dr. Fass is the former chair of the Membership committee of the American Neurogastroenterology and Motility Society, the Practice Parameter Committee and the Audio Committee of the American College of Gastroenterology (ACG) and the Publication Committee of the American Society of Gastrointestinal Endoscopy (ASGE). He also served as a member of the management committee of the journal Neurogastroenterology and Motility. In addition, Dr. Fass served as a member of many committees of different GI societies. Dr. Fass is the recipient of the American Gastroenterological Association Award for Digestive Sciences in Clinical Research, the Tucson VA hospital Investigator of the Year Award, and the International Foundation of Functional Gastrointestinal Disorders Senior Clinical Investigator Award. He has received the University of Arizona Dean’s Research Award, the Glaxo Institute of Digestive Health Clinical Research Award twice, the American College of Gastroenterology Research Award three times, the American Medical Association Resident-Mentor Award twice, and the American Journal of Gastroenterology Outstanding Reviewer Award. Dr. Fass has been selected as one of the Best Doctors in Arizona between 2004 and 2011 and Northern Ohio between 2012 and 2015. Dr. Fass was named World’s Leading Expert in the research and treatment of GERD by Expertscape.com (press release 11/2013) Dr. Fass is a frequent lecturer and presenter and is a reviewer for more than 70 journals. He is on the editorial board of 27 journals. He is the editor-in-chief of The Journal of Neurogastroenterology and Motility, section editor of the Journal of Clinical Gastroenterology and associate editor of Diseases of the Esophagus. He has published more than 550 articles, editorials, commentaries, and abstracts in journals such as Gastroenterology, Gut, American Family Physician, American Journal of Gastroenterology and Archives of Internal Medicine. He has published two books (GERD and NCCP) and has written 47 book chapters.