Dennis Justin Spencer

Instructor, Department of Pediatrics

Attending Physician, Boston Children's Hospital

Faculty Advisor, HMS Office of Recruitment and Multicultural Affairs

Dr. Dennis Spencer is a Pediatric Gastroenterologist at Boston Children’s Hospital (BCH) and an Instructor in Pediatrics at Harvard Medical School (HMS). A physician-scientist, he is an investigator in the Rakoff-Nahoum laboratory (HMS/BCH) with a focus on the impact of diet on the composition and function of the gut microbiome.

Dr. Spencer is a Faculty Advisor in the HMS Office of Recruitment and Multicultural Affairs as well as Faculty Chair of the BCH Graduate Medical Education Committee’s Joint Diversity & Recruitment subcommittee.

He was awarded the 2021 Harold Amos Faculty Diversity Award from HMS. The National Medical Association has also recognized Dr. Spencer as a 2021 Top Physician Under 40 Award recipient.

Dr. Spencer completed the Harvard Medical School (HMS) Fellowship in Pediatric Gastroenterology, Hepatology, and Nutrition at Boston Children’s Hospital following his residency at Lucile Packard Children’s Hospital / Stanford University. He is a graduate of the Weill Cornell / Rockefeller / Sloan-Kettering Tri-Institutional MD-PhD Program, obtaining a PhD in Microbial Pathogenesis and Immunology from The Rockefeller University. He is also a proud alumnus of Morehouse College.