Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Marilyn Yassa

Pharmacist in Woodinville, WA · enumerated 2010.

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

National Provider Identifier

1225338635

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Registry record

Entity type Individual (Type 1)

Name Mrs. Marilyn Yassa

Sex Female

Practice address 19150 Ne Woodinville Duvall Rd, Woodinville, WA, 98077

Phone (425) 788-6658

Enumeration date Nov 1, 2010

Last updated in NPPES Nov 1, 2010

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License PH60141976 (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 Marilyn Yassa?

Marilyn Yassa is registered in NPPES with the primary taxonomy of Pharmacist. 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 2010-11-01.