Clinical Interests
  • Type 1 diabetes
  • Type 2 diabetes
  • Diabetes in pregnancy
  • Cystic fibrosis related diabetes
  • Geriatric diabetes
  • Endocrinology
Medical Education
  • MD, Yale University School of Medicine
  • Residency, Massachusetts General Hospital
  • Fellowship, Massachusetts General Hospital
Board Certifications
  • Endocrinology
  • Diabetes & Metabolism
  • Boston: Massachusetts General Hospital
Existing Patients
Patient Gateway
Insurances Accepted
  • Aetna Health Inc.
  • AllWays Health (NHP) - ACD
  • AllWays Health (NHP) - PBO
  • 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
  • BMC HealthNet Mass Health MCO/ACO
  • Cigna (PAL #'s)
  • Commonwealth Care Alliance
  • 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
  • Maine Community Health Options (MCHO)
  • MassHealth
  • Medicare
  • Medicare - ACD
  • OSW - Maine
  • OSW - New Hampshire
  • OSW - Rhode Island
  • OSW - Vermont
  • Private Health Care Systems (PHCS)
  • Railroad Medicare
  • Railroad Medicare - ACD
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Unicare
  • United Healthcare (non-HMO) - ACD
  • United Healthcare (non-HMO) - PBO
  • Well Sense Pediatrics

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
Provider Gender


Deborah J. Wexler, MD, MSc, is Associate Professor of Medicine at Harvard Medical School, Boston, Massachusetts, the Associate Clinical Chief of the MGH Diabetes Unit, and Clinical Director of the MGH Diabetes Center. She received her medical degree from Yale University School of Medicine, New Haven, Connecticut, her MSc from the University of Oxford, and completed her internship, residency, and chief residency in internal medicine and fellowship in endocrinology at Massachusetts General Hospital.

Dr. Wexler’s research focuses on clinical effectiveness in type 2 diabetes. She is the MGH site Principal Investigator and is on the Executive Committee of the GRADE Study, a NIH-funded multicenter trial to determine which second hypoglycemic drug, added to metformin, is most effective for patients with type 2 diabetes (http://gradestudy.com/). She is also multiple-Principal Investigator of the REAL HEALTH-Diabetes trial, which is translating the Look AHEAD lifestyle intervention for type 2 diabetes into usual care at community health centers. She served on the American Diabetes Association’s Professional Practice Committee (2014-2016) and was a co-author of the ADA-EASD position statement on management of hyperglycemia in type 2 diabetes. Dr Wexler is on the Editorial Board of Diabetes Care and is a reviewer for multiple medical journals.

Research & Publications


View my most recent publications at PubMed


News & Events

  • Three teams honored with annual Bowditch Prize

    Three innovative teams were honored with this year’s Nathaniel Bowditch Prize, which recognized their significant contributions to enhance the delivery of quality patient care while also reducing the cost of that care.


Diabetes Unit
50 Staniford Street
3rd Floor
Boston, MA 02114-2517
Phone: 617-726-8722
Fax: 617-724-8534