Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gwen Thilavanh

Optometrist in Happy Valley, OR · enumerated 2016.

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

National Provider Identifier

1902269525

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Registry record

Entity type Individual (Type 1)

Name Gwen Thilavanh

Sex Female

Practice address 9201 Se 91st Ave Ste 130, Happy Valley, OR, 97086

Phone (503) 775-2424

Fax (503) 775-6181

Enumeration date Mar 31, 2016

Last updated in NPPES Aug 22, 2026

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License ATI4304 (OR) 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 Gwen Thilavanh practice?

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

What is the NPI number for Gwen Thilavanh?

The National Provider Identifier (NPI) for Gwen Thilavanh is 1902269525, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-22.