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. Clarissa Johnston:
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- Currently 3.5 of 4 stars
The overall average patient rating of Dr. Clarissa Johnston is Excellent.
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Specialties & Research
Dr. Clarissa Johnston, DO is board certified in Family Medicine.
- She has special expertise in 1 area:
- Flu (Human Influenza)
Education & Awards
Dr. Johnston graduated from Kansas City University of Medicine.
Dr. Johnston has 4 hospital affiliations:
- Casa Grande Regional Medical Center
- Maricopa Medical Center
Accepted Insurance Plans
Dr. Johnston accepts these health insurances in at least one office:
- United Healthcare - 15 plans
- Blue Cross Blue Shield of Arizona - 5 plans
- United Health Group, Inc. - Americhoice - 4 plans
- Cigna - 6 plans
- Humana - 19 plans