Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katrina Williams

Registered Nurse in West Haven, CT · enumerated 2026.

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

National Provider Identifier

1922914449

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Registry record

Entity type Individual (Type 1)

Name Katrina Williams

Sex Female

Practice address 66 Ashford St, West Haven, CT, 06516

Phone (203) 243-9138

Enumeration date Aug 24, 2026

Last updated in NPPES Aug 24, 2026

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 112537 (CT) 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

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 Katrina Williams?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-24.