Back to Results

Garrett Zella, MD Accepting New Patients Virtual Appointments Available Online Scheduling Available

Programs + Specialties
Training + Education Tufts University School of Medicine; Tufts University School of Medicine; Tufts Children's Hospital; Massachusetts General Hospital
Board Certifications Pediatric Gastroenterology and Nutrition
NPI # 1164558805
Gender Male
Accepted Insurances View Accepted Insurances at Tufts Medical Center

The Patient Rating score is an average of all responses to physician-related questions on our nationally-recognized Patient Satisfaction Survey

Tufts Children's Hospital
Tufts Children's, 2nd Floor
755 Washington Street
Box 213
Boston, MA 02111
Phone #: 617-636-3266
Fax #: 617-636-8718
Tufts Children's—Brockton
Pearl Building
1 Pearl Street
Suite 1200
Brockton, MA 02392
Phone #: 508-232-6465
Fax #: 508-586-5673
Stoneman Outpatient Center
2 Jan Sebastian Way
Sandwich, MA 02563
Phone #: 617-636-3266

2021, "Top Doctor", Boston Magazine
2020, "Top Doctor," Boston Magazine
2019, Excellence in Teaching Award, Tufts University School of Medicine Class of 2019
2018/2019, "Top Doctor," Boston Magazine
2017, "Top Doctor," Boston Magazine
2017, The Sydney S. Gellis Award for Excellence in Teaching, Tufts Children's Hospital Pediatric Residency Program
2017, Excellence in Teaching Award, Tufts University School of Medicine Class of 2017
2016, Leonard Tow Humanism in Medicine Award, Tufts University School of Medicine
2015, Top Doctors, South Shore Living and Cape Cod Magazines
2015, Excellence in Teaching Award, Tufts University School of Medicine Class of 2015
2015, Notable Teaching in the Pediatrics Clerkship, Tufts University School of Medicine Class of 2016
2013, Excellence in Tutoring Award, Harvard Medical School Class of 2015
2012, Partners in Excellence Team Award, Partners HealthCare
2012, Harvard Medical School Medical Education Day Abstract Award, Harvard Medical School
2009, Faculty Teaching Award, MassGeneral Hospital for Children, Pediatric Gastroenterology, Harvard Medical School
2007, Nominee for Brian A. McGovern Award for Clinical Excellence, Massachusetts General Hospital
2006, MGH Pediatric Fellow Award, Massachusetts General Hospital
2005, Gold Foundation Humanism and Excellence in Teaching Award, Tufts University School of Medicine
2004 and 2005, Award for Excellence in Teaching, Tufts University School of Medicine
2003, Selected to attend the NASPGHAN Teaching and Tomorrow Program, Tufts Children's Hospital
2002, New England Pediatric Society Prize, Tufts University School of Medicine
2002, Alpha Omega Alpha Honor Society, Tufts University School of Medicine

1. Glassman LW, Grocott OR, Kunz PA, Larson AM, Zella G, Ganguli K, Thibert RL. Prevalence of gastrointestinal symptoms in Angelman syndrome. Am J Med Genet Part A. 2017;173A:2703–2709.

2. Shaaya EA, Pollack SF, Boronat S, Davis-Cooper S, Zella GC, Thibert RL. Gastrointestinal problems in 15q duplication syndrome. Eur J Med Genet. 2015 Mar;58(3):191-3.

3. Meelu P, Marin R, Clish C, Zella G, Cox S, Yajnik V, Nguyen DD, Korzenik JR. Impaired Innate Immune Function Associated with Fecal Supernatant from Crohn’s Disease Patients: Insights into Potential Pathogenic Role of the Microbiome. Inflammatory Bowel Disease. 2014 Jul;20(7):1139-46.

4. Garrett C. Zella, Esther J. Israel. Chronic Diarrhea. In: Pediatric Nutrition Handbook. Kleinman RJ, ed. American Academy of Pediatrics Committee on Nutrition. 7th Edition; 2013.

5. Garrett C. Zella, Michael S. Gee, Kamran Badizadegan. A 15 year-old boy with abdominal pain, hematochezia, and anemia. N Engl J Med 2012; 367:659-667.

6. Garrett C. Zella, Esther J. Israel. Chronic Diarrhea in Children. In: Pediatrics In Review. American Academy of Pediatrics; Vol 33 (5) May 2012. p. 207-218.

7. Zella, Garrett; Hait, Elizabeth; Glavin, Tiffany, et al. Distinct microbiome in pouchitis compared to healthy pouches in ulcerative colitis and familial adenomatous polyposis. Inflammatory Bowel Disease. 2011; 17(5), 1092-1100.

8. Garrett C. Zella, MD, Michael E. Weinblatt, MD, Harland S. Winter, MD. Drug-induced lupus associated with infliximab and adalimumab in an adolescent with Crohn’s disease. Journal of Pediatric Gastroenterology and Nutrition. 2009;43(3):355-358.

9. Bradley Monash, Jess Kaplan, Jeffrey Biller, Garrett Zella, Paritosh Prasad. Gastroenterology. In: Pocket Pediatrics: The Massachusetts General Hospital for Children Handbook of Pediatrics, Lippincott Williams and Wilkins; 2009.

10. Garrett C. Zella, Esther Jacobowitz Israel. Gastroenterology. In: In A Page Pediatrics, Scott Kahan, Jonathan E. Teitelbaum, Kathleen O. DeAntonis. Baltimore, MD: Lippincott Williams and Wilkins; 2008. p. 52-84.

Dr. Garrett Zella grew up in Texas then California, before he and his family moved to Massachusetts in the middle of high school. He attended Brandeis University to obtain his B.S. in biology, followed by medical school at Tufts University School of Medicine. He remained in the Tufts system, completing his residency in pediatrics at the Tufts Children's Hospital at Tufts Medical Center. He then moved to MGH where he completed his fellowship in pediatric gastroenterology and nutrition. During fellowship, he began his research in the microbiome as it related to inflammatory bowel disease, which he continued into his staff position there starting in 2008. He continued that work for 2 more years, before transitioning to an Associate Director of the pediatric residency program. He cherished his involvement with the residents but in 2012 narrowed his focus, becoming one of the Assistant Directors of the pediatric GI fellowship. Dr. Zella has acquired a clinical focus in treating GI disturbances in neurologic disease as part of the Dup15q Center (helping to treat children with isodicentric duplication of chromosome 15) and helping to care for many children with Angelman and Williams syndromes in collaboration with the pediatric neurology division. In 2013, he accepted a position at Tufts Children's Hospital with opportunities in increased leadership and education both in the division of Pediatric GI and at the medical school.

North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition

Boston Magazine 2022 Top Doctors

2022 “Top Doctors” at Tufts MC and Tufts Medical Center

See our Top Doctors
Top Doctor 2021

2021 “Top Doctors” at Tufts MC and Tufts Medical Center

See our Top Doctors
Top Doctors Boston Magazine 2020

2020 “Top Doctors” at Tufts MC and Tufts Medical Center

See our Top Doctors
Boston Magazine 'Top Doctor' Award 2017

Boston Magazine honors 2017 “Top Doctors” at Tufts Medical Center.

2017 Boston Magazine Top Doctors
Dr. Clarissa Yang on the cover of 2019 Boston Magazine Top Doctor issue.

2019 “Top Doctors” at Tufts MC and Tufts Medical Center

See our Top Doctors
Five white stars

What do the star ratings on physician profiles mean?

Learn about the program

I love spending time with my family and fitting in soccer and tennis where possible.