Andrew T. Chan MD, MPH

Dr. Andrew T. Chan is a Professor of Medicine at Harvard Medical School, Professor in the Department of Immunology and Infectious Disease at Harvard T.H. Chan School of Public Health, Chief of the Clinical and Translational Epidemiology Unit, and Program Director of Gastroenterology fellowship at Mass General. He also co-leads the Cancer Epidemiology Program at the Dana-Farber Harvard Cancer Center.

He aims to advance epidemiologic investigation for the translation of discoveries into effective clinical interventions. His current focus is on chronic digestive diseases, including gastrointestinal cancer (colorectal, esophageal, pancreatic), inflammatory bowel disease, diverticulitis, and gastrointestinal bleeding. His group utilizes molecular approaches encompassing genetic, metabolomic, proteomic, and biochemical platforms applied to populations ranging from large cohort studies to small biomarker-driven clinical trials. He also has an active program studying the oral and gut microbiome as a determinant and mediator of chronic disease.

Dr. Chan earned his MD from Harvard Medical School and an MPH from Harvard T.H. Chan School of Public Health. He completed his internal medicine residency, chief residency, and gastroenterology fellowship at Mass General. He is the Stuart and Suzanne Steele MGH Research Scholar. He was awarded the 2016 Martin Prize for Clinical Research by the MGH Executive Committee on Research and is an Elected Fellow of the American Society of Clinical Investigation. His group is supported by several grants from the National Institutes of Health, the National Cancer Institute, and several foundations.