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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- Currently 4 of 4 stars
The overall average patient rating of Dr. John Lewis is Excellent.
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Specialties & Research
Dr. John Lewis, MD is board certified in Internal Medicine.
- He has special expertise in 2 areas:
- Flu (Human Influenza)
Education & Awards
Dr. Lewis graduated from New York Medical College, Valhalla. He has 3 awards.
Dr. Lewis has 10 hospital affiliations:
- Brigham and Women's Hospital
- Massachusetts General Hospital
Accepted Insurance Plans
Dr. Lewis accepts these health insurances in at least one office:
- Tufts Health Plans - 7 plans
- United Healthcare - 4 plans
- Blue Cross Blue Shield of Massachusetts - 15 plans
- Great-West Healthcare - 3 plans
- Network Health - 2 plans
- Evercare - 4 plans
- Cigna - 6 plans
- Humana - 6 plans