NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Ann Nguyen, O.D.

Optometrist in Federal Way, WA · enumerated 2014 · practices at Ann T Nguyen LLC.

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

National Provider Identifier

1780098459

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Registry record

Entity type Individual (Type 1)
Name Dr. Ann Nguyen
Credential O.D.
Sex Female
Practice address Federal Way, WA, 98023
Phone (323) 813-6438
Enumeration date Jun 20, 2014
Last updated in NPPES Oct 27, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 14933 (CA) Secondary
152W00000X Optometrist Eye and Vision Services Providers · License OD60461466 (WA) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

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

Where does Ann Nguyen practice?
The practice location on file with NPPES is in Federal Way, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ann Nguyen?
The National Provider Identifier (NPI) for Ann Nguyen is 1780098459, 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 2023-10-27.