Attention Joslin Patients:

Mask wearing and COVID-19 screening will continue at Joslin until further notice per the Governor’s latest update for health care facilities. To expedite building entry, please access COVID Pass the day of your on-site appointment to answer screening questions to receive a pass. We encourage all Joslin patients, including kids 12 and over, to get a COVID-19 vaccine.

Also, please see our main COVID-19 web page for important updates regarding the availability of telehealth appointments at Joslin.
The information is available in English and Spanish.

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William M. Sullivan, MD, is a Senior Physician at Joslin Diabetes Center, specializing in diabetes and general Endocrinology.

Medical School
Georgetown University School of Medicine

Residency
Thomas Jefferson University Hospital 1980-1981, Wilford Hall USAF Medical Center 1981-1983

Fellowship
Joslin Diabetes Center 1988-1989, Yale New Haven Hospital 1989-1990 

Board Certification
American Board: Internal Medicine, Subspecialty: Endocrinology and Metabolism

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Contact Information

Office Phone

(617) 309-2440

william.sullivan [at] joslin.harvard.edu