NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Donna Renee Williams, MSW

Clinical Social Worker in Oakland, CA · enumerated 2007 · practices at Alameda County.

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

National Provider Identifier

1083815682

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Registry record

Entity type Individual (Type 1)
Name Ms. Donna Renee Williams
Credential MSW
Sex Female
Practice address 7200 Bancroft Ave Ste 125a, Oakland, CA, 94605
Fax (510) 777-3806
Enumeration date May 30, 2007
Last updated in NPPES Jul 12, 2019

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 89444 (CA) Primary

Other identifiers

Identifier Type State Issuer
1041C0700X Other CA MEDICARE

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

How do I verify Donna Williams's NPI record?
Cross-check NPI 1083815682 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1083815682 active?
Yes, as of the latest NPPES snapshot, NPI 1083815682 is active (record last updated 2019-07-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-12.