Sarah Fleet, MD

Attending Physician

Instructor of Pediatrics, Harvard Medical School

    Contact: 617-355-4677
  • Fax: 617-730-4722

Medical Services


  • Gastroenterology
  • Growth Disorders
  • Growth and Nutrition
  • Nutrition


  • Gastroenterology Clinic
  • Gastroenterology, Hepatology and Nutrition


  • English


  • Gastroenterology Procedure Unit
  • Growth and Nutrition Program
  • Nutrition Center
To schedule an appointment: Call 617-355-4677

Experience and Education


Medical School

University of Connecticut School of Medicine, 2007-2011

Farmington, CT


Columbia University Medical Center, 2011-2014

New York, New York


Columbia University Medical Center, 2014-2017

New York, New York


  • Pediatric Clinical Specialist


Publications powered by Harvard Catalyst Profiles
  1. Fleet SE, Lefkowitch JH, Lavine JE. Current Concepts in Pediatric Nonalcoholic Fatty Liver Disease. Gastroenterol Clin North Am. 2017 Jun; 46(2):217-231.
  2. Baffour-Awuah NY, Fleet S, Montgomery RK, Baker SS, Butler JL, Campbell C, Tischfield S, Mitchell PD, Allende-Richter S, Moon JE, Fishman L, Bousvaros A, Fox V, Kuokkanen M, Grand RJ, Hirschhorn JN. Functional significance of single nucleotide polymorphisms in the lactase gene in diverse US patients and evidence for a novel lactase persistence allele at -13909 in those of European ancestry. J Pediatr Gastroenterol Nutr. 2015 Feb; 60(2):182-91.
  3. Branchini BR, Southworth TL, Murtiashaw MH, Boije H, Fleet SE. A mutagenesis study of the putative luciferin binding site residues of firefly luciferase. Biochemistry. 2003 Sep 09; 42(35):10429-36.
To schedule an appointment: Call 617-355-4677


Boston Children’s is so much more than a hospital—it’s a community of researchers, clinicians, administrators, support staff, innovators, teachers, patients and families, all working together to make the impossible possible. ”
- Sandra L. Fenwick, President and CEO

Boston Children's Hospital
300 Longwood Avenue, Boston, MA 02115
For Patients: 617-355-6000
For Referring Providers: 844-BCH-PEDS | 844-224-7337