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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).

> > > > Dr. Christopher O'Barr, MD

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Additional Information
Dr. Christopher M O'Barr MD is a male Internist, has 4 years of experience and practices in Internal Medicine.
Where does Dr. Christopher M. O'Barr practice?
Dr. Christopher O'Barr has 3 office locations.
Dr. Christopher O'Barr practices Internal Medicine near Scottsdale, AZ.
Additional practice locations include: Phoenix, AZ.
See Scottsdale Internists.