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. William O'Brien, MD is board certified in Family Medicine.
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Education & Awards
Dr. O'Brien graduated from University of Minnesota, Twin Cities, Minneapolis.More Education & Awards
Accepted Insurance Plans
Dr. O'Brien accepts these health insurances in at least one office:
- Health Choice Arizona - 1 plan
- United Health Group, Inc. - Americhoice - 2 plans
- Humana - 6 plans
More Accepted Insurance
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- Additional Information
- Where does Dr. William J. O'Brien practice?
Dr. William O'Brien practices Family Medicine, General Practice, and Internal Medicine near Fountain Hills, AZ.
Additional practice locations include: Phoenix, AZ and Gilbert, AZ.
See Fountain Hills Family Physicians, Fountain Hills General Practitioners, and Fountain Hills Internists.