A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
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Specialties & Research
Dr. Jonathan Williams, MD, MMSC is board certified in Endocrinology, Diabetes & Metabolism.
- He has special expertise in 3 areas:
- Diabetes Mellitus
Education & Awards
Dr. Williams graduated from Drexel University , Philadelphia.
Dr. Williams has 5 hospital affiliations:
- Brigham and Women's Hospital
- Dana-Farber Cancer Institute
Accepted Insurance Plans
Dr. Williams accepts these health insurances in at least one office:
- Tufts Health Plans - 6 plans
- United Healthcare - 16 plans
- Great-West Healthcare - 4 plans
- Unicare - 11 plans
- Network Health - 2 plans
- Cigna - 14 plans
- Fallon Community Health Plan (FCHP) - 1 plan
- Aetna - 3 plans