Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nina M Johnson, MFT MARRIAGE AND FAM

Q: What is the NPI number for Nina Johnson?

The National Provider Identifier (NPI) for Nina Johnson is 1982753513, a Type 1 (individual) record in the CMS NPPES registry.

Psychologist in Castro Valley, CA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1982753513

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Registry record

Entity type Individual (Type 1)

Name Nina M Johnson

Credential MFT MARRIAGE AND FAM

Sex Female

Practice address 20200 Redwood Rd, Castro Valley, CA, 94546

Phone (510) 581-2522

Enumeration date Jan 10, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License MFC21535 (CA) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Nina Johnson practice?

The practice location on file with NPPES is in Castro Valley, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Nina Johnson?

The National Provider Identifier (NPI) for Nina Johnson is 1982753513, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.