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

Catherine Chia-Yu Liu, O.D.

Optometrist in Tucson, AZ · enumerated 2015 · practices at Banner-University Medical Group.

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

National Provider Identifier

1376930610

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Registry record

Entity type Individual (Type 1)
Name Catherine Chia-Yu Liu
Credential O.D.
Sex Female
Practice address Tucson, AZ, 85711
Enumeration date Apr 24, 2015
Last updated in NPPES Jun 23, 2026

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 830 (NV) Secondary
152W00000X Optometrist Eye and Vision Services Providers · License 002952 (AZ) Primary
152W00000X Optometrist Eye and Vision Services Providers · License 046011060 (IL) Secondary
152W00000X Optometrist Eye and Vision Services Providers · License 3390 (CO) Secondary
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

How do I verify Catherine Liu's NPI record?
Cross-check NPI 1376930610 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1376930610 active?
Yes, as of the latest NPPES snapshot, NPI 1376930610 is active (record last updated 2026-06-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-23.