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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- Currently 4 of 4 stars
The overall average patient rating of Dr. Warren Johnson is Excellent.
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Specialties & Research
Dr. Warren Johnson, MD, PHD is board certified in Family Medicine.
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Education & Awards
Dr. Johnson graduated from University of Arizona, Tucson. He has 3 awards.
Dr. Johnson has 8 hospital affiliations:
- Arizona Heart Hospital
- Banner Good Samaritan Regional Medical Center
Accepted Insurance Plans
Dr. Johnson accepts these health insurances in at least one office:
- United Healthcare - 16 plans
- Blue Cross Blue Shield of Arizona - 4 plans
- SCAN Health Plan - 1 plan
- United Health Group, Inc. - Americhoice - 4 plans
- Cigna - 10 plans
- Humana - 23 plans
- Great-West Healthcare - 3 plans
- USA H & W Network - 1 plan
- Aetna - 6 plans
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