NPI Portal NPI Lookup & Verification

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

Dr. Andrew Liu, O.D.

Optometrist in Rowland Heights, CA · enumerated 2011.

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

National Provider Identifier

1881982981

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Andrew Liu
Credential O.D.
Sex Male
Practice address Rowland Heights, CA, 91748
Phone (626) 823-3494
Enumeration date Jul 11, 2011
Last updated in NPPES May 11, 2018

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 14211 (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

Where does Andrew Liu practice?
The practice location on file with NPPES is in Rowland Heights, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Andrew Liu?
The National Provider Identifier (NPI) for Andrew Liu is 1881982981, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-11.