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Clarissa Johnston, DO
NPI 1851371579 · Family Medicine Physician · Phoenix, AZ
Clarissa Johnston, DO is a Family Medicine Physician provider in Phoenix, AZ (NPI 1851371579).
Provider details
- NPI number
- 1851371579
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 2310 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
11416 N 44th Ct
Phoenix, AZ 85028-2325
Phone: (480) 242-7400
Street-level locationGet directions
Mailing address
11416 N. 44th Court
Phoenix, AZ 85028-2325
Registry dates
- Enumerated
- 2006-01-19
- Last updated
- 2011-12-15
Frequently asked questions
- What is Clarissa Johnston's NPI number?
- Clarissa Johnston's National Provider Identifier (NPI) is 1851371579, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clarissa Johnston's specialty?
- Clarissa Johnston is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Clarissa Johnston located?
- Clarissa Johnston's practice location on file with NPPES is 11416 N 44th Ct, Phoenix, AZ 85028-2325.
- What is Clarissa Johnston's phone number?
- The practice phone number listed in the NPPES registry for Clarissa Johnston is (480) 242-7400.
- Is Clarissa Johnston's NPI active?
- Yes — Clarissa Johnston's NPI (1851371579) is active in the NPPES registry as of the last update on 2011-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.