Dr. Marion Edwyn Harrison is a Hepatologist,Gastroenterologist and Internal Medicine in Phoenix 85054, PHOENIX and has an experience of 41 years in these fields. Dr. Marion Edwyn Harrison practices at Mayo Clinic in Phoenix 85054, PHOENIX,Mayo Clinic in Phoenix 85054, PHOENIX and Mayo Clinic Cancer Center in Phoenix 85054, PHOENIX. He completed Medical School from University Of Virginia School Of Medicine in 1981,Residency - ID from Emory University School of Medicine / Emory University in 1988 and Fellowship 2 from Mayo Clinic College of Medicine and Science in 1993. He is a member of American Society For Gastrointestinal Endoscopy,American college of gastroenterology,American Liver Foundation,American Association For The Study of Liver Diseases,Arizona Medical Association,American College of Physician Executives,Phoenix Society of Gastroenterology,Top Docs 2016 The International Association of Health Care Professionals (2016),Board Member Vanderbilt Parents and Family Association Advisory Board, Vanderbilt University (2011),ASGE Video Selections American Society for Gastrointestinal Endoscopy (2005),Member Accreditation Survey Team, Liaison Committee on Medical Education (2017 - present),Member American Society for Gastrointestinal Endoscopy (1990 - present),Member American Gastroenterological Association (1990 - present),Member American Liver Foundation (1993 - present),Member American Association for the Study of Liver Diseases (1992 - present),Member American College of Physician Executives (2009 - present),Member Phoenix Society of Gastroenterology (2003 - present),American Society for Gastrointestinal Endoscopy - ASGE,American Association for Study of Liver Disease and American Association for Physician Leadership - AAPL. Some of the services provided by the doctor are: ERCPs,Gastrointestinal Bleeding,Wireless pH Testing,Esophageal Varices and celiac disease etc.