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

Ms. Jeanette Yvonne Williams, LCSW

Social Worker in Sylmar, CA · enumerated 2012.

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

National Provider Identifier

1255682985

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Jeanette Yvonne Williams

Credential LCSW

Sex Female

Practice address Sylmar, CA, 91342

Phone (818) 364-4448

Fax (818) 364-3554

Enumeration date Sep 20, 2012

Last updated in NPPES Sep 20, 2012

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

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 11784 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1255682985 active?

Yes, as of the latest NPPES snapshot, NPI 1255682985 is active (record last updated 2012-09-20).

How do I verify Jeanette Williams's NPI record?

Cross-check NPI 1255682985 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Alan Knopf Orthopaedic Surgery Physician · Sylmar, CA NPI 1558355404 Primal Kaur Rheumatology Physician · Sylmar, CA NPI 1851380786 Fredrick Melik-Abrahamian Emergency Medicine Physician · Sylmar, CA NPI 1134159890 Scott Lundberg Emergency Medicine Physician · Sylmar, CA NPI 1770518789 Paul Buzad Obstetrics & Gynecology Physician · Sylmar, CA NPI 1134153331 John Sacoolidge Anatomic Pathology & Clinical Pathology Physician · Sylmar, CA NPI 1447285820 Robert Nishimura Neurology Physician · Sylmar, CA NPI 1265467500 Charles Rosenbaum Specialist · Sylmar,, CA NPI 1134141518

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-20.