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).
- Currently 4 of 4 stars
The overall average patient rating of Dr. John O'Brien is Excellent. Dr. O'Brien has been reviewed by 3 patients who have provided 2 comments. The rating is 4 out of 4 stars.
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Specialties & Research
Dr. John O'Brien, MD is board certified in Internal Medicine and Cardiovascular Disease.
He has special expertise in 1 Area, including Myocardial Infarction.
More Specialties & Research
Education & Awards
Dr. O'Brien graduated from Georgetown University, Washington.More Education & Awards
Dr. O'Brien has 2 hospital affiliations:
- Inova Fairfax Hospital
- Inova Fair Oaks Hospital
Accepted Insurance Plans
Dr. O'Brien accepts these health insurances in at least one office:
- United Healthcare - 2 plans
- Great-West Healthcare - 2 plans
- Unicare - 2 plans
- AMERIGROUP - 2 plans
- Cigna - 10 plans
- Humana - 2 plans
- Medicare - 1 plan
More Accepted Insurance
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- Additional Information
- Where does Dr. John T. O'Brien practice?
Dr. John O'Brien practices Internal Medicine, Cardiovascular Disease, Cardiology, and Interventional Cardiology near Annandale, VA.
Additional practice locations include: Falls Church, VA.
See Annandale Internists and Annandale Cardiologists.
- Similar Physician Names
- Dr. Van O'Brien, Dr. Deshawn O'Brien, Dr. Jan O'Brien, Dr. Hank O'Brien, Dr. Shayne O'Brien, Dr. Shane O'Brien, Dr. Jackie O'Brien, Dr. Giovanni O'Brien