Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Rita A. Williams-Washington

Social Worker in San Leandro, CA · enumerated 2016.

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

National Provider Identifier

1316495609

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Registry record

Entity type Individual (Type 1)

Name Rita A. Williams-Washington

Sex Female

Practice address 777 Davis St Ste 300, San Leandro, CA, 94577

Phone (510) 839-3800

Enumeration date Sep 14, 2016

Last updated in NPPES Nov 24, 2025

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other Service Providers Secondary

104100000X Social Worker Behavioral Health & Social Service Providers · License ASW123586 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
123586	Other	CA	BBS

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 Rita Williams-Washington practice?

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

What is the NPI number for Rita Williams-Washington?

The National Provider Identifier (NPI) for Rita Williams-Washington is 1316495609, 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 2025-11-24.