Meet Our Team

Physicians

Sarah Fleet , MD

Gastroenterologist, Division of Gastroenterology, Hepatology and Nutrition
Instructor of Pediatrics, Harvard Medical School

Lisa Mahoney , MD

Gastroenterologist, Division of Gastroenterology, Hepatology and Nutrition
Assistant Professor of Pediatrics, Harvard Medical School

Dennis Spencer , MD, PhD

Gastroenterologist, Division of Gastroenterology, Hepatology and Nutrition; Director, Equity Diversity and Inclusion, Division of Gastroenterology, Hepatology and Nutrition; Associate Program Director, Boston Combined Residency Program (BCRP)
Instructor of Pediatrics, Harvard Medical School

Desiree Sierra-Velez , MD

Medical Director, Adolescent Weight Loss (Bariatric) Surgery Program; Gastroenterologist, Division of Gastroenterology, Hepatology and Nutrition
Instructor of Pediatrics, Harvard Medical School

Nurse Practitioners

Psychologists

Ryan Davidson , PhD

Attending Psychologist, Division of Gastroenterology, Hepatology and Nutrition
Instructor of Psychology in the Department of Psychiatry, Harvard Medical School

Clinical Nutrition Specialists

Speech-Language Pathologists

Social Work