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Primary Care Doctor, Family Practitioner
38 years of experience
License & Identifications

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. William O'Brien:

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Specialties & Research

Dr. William O'Brien, MD is board certified in Family Medicine.

Education & Awards

Dr. O'Brien graduated from University of Minnesota, Twin Cities, Minneapolis. He has 1 awards.

Patients' Choice Award (2014)

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Additional Information
Dr. William John O'Brien MD is a male Family Practitioner, has 38 years of experience and practices in Family Medicine.
Where does Dr. William J. O'Brien practice?
Dr. William O'Brien has 1 office location.
Dr. William O'Brien practices Family Medicine near Fountain Hills, AZ.
See Fountain Hills Primary Care Doctors.