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Joan D. H. Washington, L.C.S.W.

Clinical Social Worker in Antioch, CA · enumerated 2006.

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

National Provider Identifier

1437213675

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Registry record

Entity type Individual (Type 1)
Name Joan D. H. Washington
Credential L.C.S.W.
Sex Female
Practice address 2213 Buchanan Rd Ste 203, Antioch, CA, 94509
Phone (925) 779-5810
Fax (925) 779-4963
Enumeration date Dec 21, 2006
Last updated in NPPES Jan 3, 2022

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LCS 15877 (CA) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW 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.

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Frequently asked questions

Where does Joan Washington practice?
The practice location on file with NPPES is in Antioch, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joan Washington?
The National Provider Identifier (NPI) for Joan Washington is 1437213675, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-03.