Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Courtney Chappuis Farmer, PH.D.

Clinical Psychologist in San Mateo, CA · enumerated 2016.

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

National Provider Identifier

1336690924

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Registry record

Entity type Individual (Type 1)

Name Courtney Chappuis Farmer

Credential PH.D.

Sex Female

Practice address 87 Lodato Ave, San Mateo, CA, 94403

Phone (337) 288-4952

Enumeration date Oct 18, 2016

Last updated in NPPES Oct 18, 2016

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY28514 (CA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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

What is the NPI number for Courtney Farmer?

The National Provider Identifier (NPI) for Courtney Farmer is 1336690924, a Type 1 (individual) record in the CMS NPPES registry.

Where does Courtney Farmer practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-18.