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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. John Mattison:

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Specialties & Research

Dr. John Mattison, MD is board certified in Internal Medicine.

Education & Awards

Dr. Mattison graduated from University of California at Davis.

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Additional Information
Dr. John Everett Mattison MD is a male Internist, has 32 years of experience and practices in Internal Medicine.
Where does Dr. John E. Mattison practice?
Dr. John Mattison has 1 office location.
Dr. John Mattison practices Internal Medicine near Los Angeles, CA.
See Los Angeles Internists.