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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. Nathaniel Johnson:

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Education & Awards

Dr. Johnson graduated from Saint Louis University.


Dr. Johnson has 2 hospital affiliations:

  • University Medical Center - Tucson 
  • Mercy Hospital Turner Memorial 


  • Spanish

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Additional Information
Dr. Nathaniel Reagor Johnson MD is a male Emergency Medicine Specialist, has 6 years of experience and practices in Emergency Medicine and Pediatric Emergency Medicine.
Where does Dr. Nathaniel R. Johnson practice?
Dr. Nathaniel Johnson has 1 office location.
Dr. Nathaniel Johnson practices Emergency Medicine and Pediatric Emergency Medicine near Tucson, AZ.
See Tucson Emergency Physicians.