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Gianna Johnson
NPI 1669311973 · Mental Health Counselor · Sunnyvale, CA
Gianna Johnson is a Mental Health Counselor provider in Sunnyvale, CA (NPI 1669311973).
Provider details
- NPI number
- 1669311973
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(51/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
1054 Carson Dr
Sunnyvale, CA 94086-5806
Phone: (408) 522-8267
Street-level locationGet directions
Mailing address
459 Avenue Del Ora
Redwood City, CA 94062-2201
Additional practice locations (1)
- 1080 Mango AveSunnyvale, CA 94087-1728Phone: (408) 522-8288
Registry dates
- Enumerated
- 2026-03-25
- Last updated
- 2026-03-25
- Certified
- 2026-03-25
Frequently asked questions
- What is Gianna Johnson's NPI number?
- Gianna Johnson's National Provider Identifier (NPI) is 1669311973, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gianna Johnson's specialty?
- Gianna Johnson is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Gianna Johnson located?
- Gianna Johnson's practice location on file with NPPES is 1054 Carson Dr, Sunnyvale, CA 94086-5806.
- What is Gianna Johnson's phone number?
- The practice phone number listed in the NPPES registry for Gianna Johnson is (408) 522-8267.
- Is Gianna Johnson's NPI active?
- Yes — Gianna Johnson's NPI (1669311973) is active in the NPPES registry as of the last update on 2026-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.