Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cindy Williams, LMSW

Social Worker in New York, NY · enumerated 2023.

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

National Provider Identifier

1811603962

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Registry record

Entity type Individual (Type 1)

Name Cindy Williams

Credential LMSW

Sex Female

Practice address 302 W 91st St Apt 2, New York, NY, 10024

Phone (212) 787-7120

Enumeration date Jan 23, 2023

Last updated in NPPES Jan 23, 2023

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 109252 (NY) Primary

Other identifiers

Identifier	Type	State	Issuer
109252	Other	NY	LICENSE

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 specialty is Cindy Williams?

Cindy Williams is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-23.