NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Carmen Zelaya, LCSW

Clinical Social Worker in Greenbrae, CA · enumerated 2009.

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

National Provider Identifier

1629200829

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Registry record

Entity type Individual (Type 1)
Name Carmen Zelaya
Credential LCSW
Sex Female
Practice address Greenbrae, CA, 94904
Phone (415) 448-1500
Enumeration date Aug 20, 2009
Last updated in NPPES Aug 20, 2009

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 21818 (CA) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier Type State Issuer
21818 Other CA CA LICENSE

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.

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Frequently asked questions

Is NPI 1629200829 active?
Yes, as of the latest NPPES snapshot, NPI 1629200829 is active (record last updated 2009-08-20).
How do I verify Carmen Zelaya's NPI record?
Cross-check NPI 1629200829 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-08-20.