Dr. Jessica Allegretti

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Jessica Allegretti, MD, MPH

Medical Degree: Weill Medical College of Cornell University
Residency: New York Presbyterian Hospital
Fellowship: Brigham and Women’s Hospital


Dr. Jessica Allegretti is an attending gastroenterologist at the Brigham and Women’s Hospital Crohn’s and Colitis Center, where she serves as the center’s Director of Clinical Trials as well as the hospital’s Fecal Microbiota Transplantation Program Director. Dr. Allegretti’s research focuses on the intestinal microbiome and the consequences of its derangement, with the goal of understanding the role dysbiosis plays in microbial associated diseases, with a particular interest in c. difficile infections (CDI) and its effect on patients with inflammatory bowel disease (IBD). Additionally she has lead several clinical trials investigating the role of FMT in other chronic diseases including obesity and primary sclerosis cholangitis.