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Gianna Johnston, LMSW
NPI 1659159119 · Social Worker · Tempe, AZ
Gianna Johnston, LMSW is a Social Worker provider in Tempe, AZ (NPI 1659159119).
Provider details
- NPI number
- 1659159119
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- LMSW-20988 (AZ)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(58/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
6350 S Maple Ave
Tempe, AZ 85283-2857
Phone: (480) 326-9732
Street-level locationGet directions
Mailing address
653 W Raven Dr
Chandler, AZ 85286-4479
Registry dates
- Enumerated
- 2023-09-18
- Last updated
- 2023-09-18
- Certified
- 2023-09-17
Frequently asked questions
- What is Gianna Johnston's NPI number?
- Gianna Johnston's National Provider Identifier (NPI) is 1659159119, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gianna Johnston's specialty?
- Gianna Johnston is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Gianna Johnston located?
- Gianna Johnston's practice location on file with NPPES is 6350 S Maple Ave, Tempe, AZ 85283-2857.
- What is Gianna Johnston's phone number?
- The practice phone number listed in the NPPES registry for Gianna Johnston is (480) 326-9732.
- Is Gianna Johnston's NPI active?
- Yes — Gianna Johnston's NPI (1659159119) is active in the NPPES registry as of the last update on 2023-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.