Centers & Specialties

MassGeneral Hospital for Children

Transplant Center

Clinical Interests
  • Inflammatory bowel disease
  • Gastrointestinal tract and nutritional status of infants
  • Children and adolescents
  • Gastrointestinal bleeding
  • Celiac disease
  • All disorders that affect the liver
  • Polyposis syndromes
Medical Education
  • MD, Johns Hopkins University School of Medicine
  • Residency, The Johns Hopkins Hospital
  • Fellowship, Boston Children's Hospital
Board Certifications
  • Pediatrics
  • Pediatric Gastroenterology
  • Boston: Massachusetts General Hospital
  • Nashua: Southern New Hampshire Medical Center
  • Newton: Newton-Wellesley Hospital
  • Waltham: Mass General Waltham
Patient Gateway
Yes, learn more
Insurances Accepted
  • Aetna Health Inc.
  • Beech Street
  • Blue Cross Blue Shield - Blue Care 65
  • Blue Cross Blue Shield - Indemnity
  • Blue Cross Blue Shield - Managed Care
  • Blue Cross Blue Shield - Partners Plus
  • Cigna (PAL #'s)
  • Fallon Community HealthCare
  • Great-West Healthcare (formally One Health Plan)
  • Harvard Pilgrim Health Plan - ACD
  • Harvard Pilgrim Health Plan - PBO
  • Health Care Value Management (HCVM)
  • Humana/Choice Care PPO
  • MassHealth
  • Medicare
  • Medicare - ACD
  • Neighborhood Health Plan - ACD
  • Neighborhood Health Plan - PBO
  • OSW - Maine
  • OSW - New Hampshire
  • OSW - Rhode Island
  • OSW - Vermont
  • Private Health Care Systems (PHCS)
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Unicare
  • United Healthcare (non-HMO) - ACD
  • United Healthcare (non-HMO) - PBO

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.

Patient Age Group


Dr. Biller is a board-certified pediatrician and pediatric gastroenterologist and a senior member of the Division of Pediatric Gastroenterology and Nutrition. He is director of the Center for Diagnostic, Therapeutic and Interventional Endoscopy at MassGeneral for Children and at Newton Wellesley Hospital. He is a senior member of the Center for Inflammatory Bowel Disease at MassGeneral Hospital for Children. In addition, he is clinical director of pediatric subspecialties at Southern New Hampshire Medical Center in Nashua, NH.

News & Events

  • Child Life Services Inspires Patient to Give Back to MGHfC

    Over the past three years, patient Nick Pemberton's positive experiences with MGHfC's Child Life services have inspired him to give back not only to Child Life services, but to other children at the hospital as well.

  • Pediatric Endoscopy Suite opens

    MassGeneral Hospital for Children (MGHfC) has opened a new Pediatric Endoscopy Suite specially designed to help children and their families feel at ease throughout their visit.


Mass General Waltham-Pedi GI & Nutrition
40 Second Ave
Suite 340
Waltham, MA 02451
Phone: 781-466-8967
Fax: 781-466-8987
MGH Children's Specialties at Southern New Hampshire Med Ctr
8 Prospect Street
1st Floor
Nashua, NH 03060-3925
Phone: 603-577-5360
Fax: 603-577-2084