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. James O'Brien is Excellent.
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Specialties & Research
Dr. James 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 New York Medical College, Valhalla. He has 1 awards.
Dr. O'Brien has 4 hospital affiliations:
- University of California, Irvine Medical Center
- Fountain Valley Regional Hospital and Med Center
Accepted Insurance Plans
Dr. O'Brien accepts these health insurances in at least one office:
- United Healthcare - 1 plan
- Blue Shield of California - 2 plans
- Great-West Healthcare - 1 plan
- Evercare - 2 plans
- Cigna - 3 plans
- Humana - 9 plans
- CaIOPTIMA - 2 plans
- Aetna - 3 plans