Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sophia M Williams

Social Worker in Grayslake, IL · enumerated 2026.

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

National Provider Identifier

1942127220

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Registry record

Entity type Individual (Type 1)

Name Sophia M Williams

Sex Female

Practice address 1190 E Washington St, Grayslake, IL, 60030

Phone (847) 549-2235

Enumeration date Jun 30, 2026

Last updated in NPPES Jun 30, 2026

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers Secondary

104100000X Social Worker Behavioral Health & Social Service Providers Primary

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

How do I verify Sophia Williams's NPI record?

Cross-check NPI 1942127220 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1942127220 active?

Yes, as of the latest NPPES snapshot, NPI 1942127220 is active (record last updated 2026-06-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-30.