Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cecillia Williams

Counselor in Federal Way, WA · enumerated 2024.

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

National Provider Identifier

1548004419

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Registry record

Entity type Individual (Type 1)

Name Cecillia Williams

Sex Female

Practice address 1336 S 336th St, Federal Way, WA, 98003

Phone (253) 833-7444

Enumeration date Jun 24, 2024

Last updated in NPPES Jun 24, 2024

Taxonomy & licenses

101Y00000X Counselor 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.

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Frequently asked questions

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.

What specialty is Cecillia Williams?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-24.