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. James O'Brien, MD is board certified in Internal Medicine and Infectious Disease.
- He has special expertise in 1 area:
Education & Awards
Dr. O'Brien graduated from University of Illinois at Chicago.
Dr. O'Brien has 6 hospital affiliations:
- St Alexius Medical Center
- Holy Family Medical Center
Accepted Insurance Plans
Dr. O'Brien accepts these health insurances in at least one office:
- Great-West Healthcare - 2 plans
- Blue Cross Blue Shield of Illinois - 13 plans
- Humana - 2 plans
- Cigna - 5 plans
- Aetna - 3 plans