Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Yvonne Simpson

Interpreter in Seattle, WA · enumerated 2024.

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

National Provider Identifier

1619728045

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Registry record

Entity type Individual (Type 1)

Name Mrs. Yvonne Simpson

Sex Female

Practice address 4333 Brooklyn Ave Ne, Seattle, WA, 98195

Phone (206) 598-2959

Enumeration date Apr 1, 2024

Last updated in NPPES Apr 1, 2024

Taxonomy & licenses

171R00000X Interpreter Other Service Providers · License 2251 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Yvonne Simpson practice?

The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Yvonne Simpson?

The National Provider Identifier (NPI) for Yvonne Simpson is 1619728045, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-01.