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).
Learn more about Dr. John O'Brien:
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- Currently 2.5 of 4 stars
The overall average patient rating of Dr. John O'Brien is Good.
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Specialties & Research
Dr. John O'Brien, MD is board certified in Internal Medicine.
- He has special expertise in 1 area:
- Flu (Human Influenza)
Education & Awards
Dr. O'Brien graduated from Albany Medical College.
Dr. O'Brien has 2 hospital affiliations:
- Newton-Wellesley Hospital
- UMass Memorial Medical Center, Inc
Accepted Insurance Plans
Dr. O'Brien accepts these health insurances in at least one office:
- Evercare - 4 plans
- Medicare - 1 plan
- Cigna - 14 plans
Similar doctors nearby
- Additional Information
- Where does Dr. John F. O'Brien practice?
Dr. John O'Brien practices Internal Medicine near Newton Lower Falls, MA.
See Newton Lower Falls Internists.