Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ann Gwinn

Nurse's Aide in Walla Walla, WA · enumerated 2024.

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

National Provider Identifier

1912763053

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Registry record

Entity type Individual (Type 1)

Name Ann Gwinn

Sex Female

Practice address 209 W Poplar St, Walla Walla, WA, 99362

Phone (509) 897-8600

Enumeration date Feb 26, 2024

Last updated in NPPES Apr 30, 2024

Taxonomy & licenses

376K00000X Nurse's Aide Nursing Service Related Providers · License NC10002400 (WA) 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 Ann Gwinn?

Ann Gwinn is registered in NPPES with the primary taxonomy of Nurse's Aide. 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 2024-04-30.