Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Teresa A Caston

Counselor in San Francisco, CA · enumerated 2007.

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

National Provider Identifier

1104942150

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Registry record

Entity type Individual (Type 1)

Name Mrs. Teresa A Caston

Sex Female

Practice address 1550 Treat Ave, San Francisco, CA, 94110

Phone (415) 641-8000

Enumeration date Mar 21, 2007

Last updated in NPPES May 10, 2013

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers 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

What is the NPI number for Teresa Caston?

The National Provider Identifier (NPI) for Teresa Caston is 1104942150, a Type 1 (individual) record in the CMS NPPES registry.

Where does Teresa Caston practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-10.