James D. Lewis, MD, MSCE

James D. Lewis, MD, MSCE

Professor of Medicine and Epidemiology

James Lewis, MD, MSCE, is Professor of Medicine and Epidemiology, Senior Scholar in the Center for Clinical Epidemiology and Biostatistics, Associate Director of the Inflammatory Bowel Disease Program, and Director of Clinical Research in the Division of Gastroenterology and Hepatology at the University of Pennsylvania’s Perelman School of Medicine. He serves as the director of the Human Research Core of Penn’s Center for Nutrition Science and Medicine. He is currently the lead scientist for the Crohn’s & Colitis Foundation’s IBD Plexus Research Program.

For more than 25 years, Dr. Lewis has been actively involved in clinical research related to inflammatory bowel diseases and other gastrointestinal diseases with goal of improving patients’ outcomes by optimizing the use of medical therapies, diagnostic tests, and nutrition. His work has been funded by the NIH, AHRQ, PCORI, and numerous foundations and corporate sponsors. His research has employed a wide range of methods, including clinical trials, controlled feeding studies, observational studies using administrative data, prospective cohort studies, and decision modeling.

Dr. Lewis has been recognized for his excellence in research, teaching and clinical care. He is an elected member of the American Society for Clinical Investigation, the Association of American Physicians and the International Organization for the Study of Inflammatory Bowel Disease. He is a recipient of a Sherman Prize for Excellence in Crohn’s and Colitis research, the Crohn’s and Colitis Foundation’s Achievement in IBD Clinical Science Award, the American Gastroenterological Association Distinguished Educator Award, and the Christian R. and Mary F. Lindback Awards for Distinguished Teaching. He has been named as one of Philadelphia’s Top Doctors.

Content Area Specialties

Gastrointestinal epidemiology, pharmacoepidemiology, clinical trials, nutrition and microbiome research