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 Surgery.
- He has special expertise in 2 areas:
- Endocrine Disorders
- Head and Neck Cancer
Education & Awards
Dr. O'Brien graduated from Saint Louis University. He has 2 awards.
Dr. O'Brien has 2 hospital affiliations:
- Baylor University Medical Center
- Baylor Specialty Hospital
Accepted Insurance Plans
Dr. O'Brien accepts these health insurances in at least one office:
- United Healthcare - 1 plan
- Great-West Healthcare - 2 plans
- Unicare - 11 plans
- Evercare - 1 plan
- Cigna - 12 plans
- Humana - 6 plans
- Medicare - 1 plan
- USA H & W Network - 1 plan