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

Janet Lynn Williams, LMSW

Social Worker in Laveen, AZ · enumerated 2018 · practices at Gila River Health Care Corporation.

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

National Provider Identifier

1508369240

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Registry record

Entity type Individual (Type 1)
Name Janet Lynn Williams
Credential LMSW
Sex Female
Practice address Laveen, AZ, 85339
Phone (520) 550-6422
Fax (520) 550-6033
Enumeration date Mar 8, 2018
Last updated in NPPES Mar 8, 2018

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 LMSW-13825 (AZ) Primary

Other identifiers

Identifier Type State Issuer
35728 Other TX LICENSED BACHELOR SOCIAL WORKER

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

What is the NPI number for Janet Williams?
The National Provider Identifier (NPI) for Janet Williams is 1508369240, a Type 1 (individual) record in the CMS NPPES registry.
Where does Janet Williams practice?
The practice location on file with NPPES is in Laveen, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-08.