Senior Gastroenterologist, Division of Gastroenterology, Hepatology and Nutrition; Director, Center for Nutrition; Medical Director, Center for Advanced Intestinal Rehabilitation (CAIR)
Meltzer Professor of Pediatrics in the Field of Gastroenterology, Harvard Medical School; Professor in the Departments of Nutrition and Global Health and Population, Harvard TH Chan School of Public Health
Vice Chair of Education; Craig W. Lillehei Chair in Surgical Education; Program Director, Pediatric Surgery Fellowship; Surgical Director, CAIR; Surgical Director, Thyroid Center; Director, Thoracic Outlet Syndrome Program
Associate Professor of Surgery, Harvard Medical School