Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Patricia Liang, OD

Optometrist in Fontana, CA · enumerated 2018.

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

National Provider Identifier

1912481961

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Registry record

Entity type Individual (Type 1)

Name Dr. Patricia Liang

Credential OD

Sex Female

Practice address 8275 Sierra Ave Ste 103, Fontana, CA, 92335

Phone (099) 822-1115

Fax (909) 822-6346

Enumeration date Sep 15, 2018

Last updated in NPPES Apr 6, 2023

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 34059TLG (CA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1912481961 active?

Yes, as of the latest NPPES snapshot, NPI 1912481961 is active (record last updated 2023-04-06).

How do I verify Patricia Liang's NPI record?

Cross-check NPI 1912481961 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-06.