Ramnik Xavier, MD, PhD
Ramnik Xavier, MD, PhD

Ramnik Xavier, MD, PhD is Chief of the Division of Gastroenterology at Massachusetts General Hospital; Kurt Isselbacher Professor of Medicine, Harvard Medical School; and Senior Associate Member of the Broad Institute. In addition to his duties as a clinical gastroenterologist, he directs a research program that uses both translational and basic science approaches to study Crohn’s disease and ulcerative colitis. He also directs the Center for Study of Inflammatory Bowel Disease, a multidisciplinary program funded by the National Institute of Health dedicated to defining the fundamental mechanisms underlying Crohn’s disease and ulcerative colitis.

Dr. Xavier also co-leads an initiative to investigate connections between the microbiome and inflammatory bowel disease. This program marks the second phase of the Human Microbiome Project, a project launched in 2008 to characterize the microbial communities that live in and on the human body, and to analyze the role of these microbes in health and disease.

Dr. Xavier is clinically active, teaching medical students, residents in medicine and gastroenterology fellows rotating through the Crohn’s Colitis Center at Mass General.

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