Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Annie Ya-Yen Liang

Q: What is the NPI number for Annie Liang?

The National Provider Identifier (NPI) for Annie Liang is 1023370939, a Type 1 (individual) record in the CMS NPPES registry.

Optometrist in Tualatin, OR · enumerated 2012.

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

National Provider Identifier

1023370939

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Registry record

Entity type Individual (Type 1)

Name Annie Ya-Yen Liang

Sex Female

Practice address 19200 Sw Martinazzi Ave, Tualatin, OR, 97062

Phone (503) 692-5040

Enumeration date Jun 15, 2012

Last updated in NPPES Jun 15, 2012

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 3433AT (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 Annie Liang practice?

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

What is the NPI number for Annie Liang?

The National Provider Identifier (NPI) for Annie Liang is 1023370939, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-15.