Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CATHERINE CHIA-YU LIU O.D.
NPI 1376930610
Optometrist in Tucson, AZ

Q: What is Catherine Liu's NPI number?

The NPI number for Catherine Liu is 1376930610. It was assigned to this individual provider in the NPPES registry on April 24, 2015.

Q: What is Catherine Liu's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Q: When was this NPI record last updated?

The NPPES record for Catherine Liu was last updated on June 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 46 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 24, 2015PECOS Enrolled

707 N ALVERNON WAY STE 301, TUCSON, AZ 85711(520) 694-1460 Get Directions Write a Review

NPPES record last updated: June 23, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 5, 2024, Jul 8, 2021, Dec 1, 2020 and 2 more (5 updates tracked since 2016).

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About Catherine Chia-yu Liu O.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CATHERINE CHIA-YU LIU O.D. (NPI 1376930610) is an individual optometrist in Tucson, Arizona, licensed in Arizona (002952) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1376930610

Entity TypeIndividualFemale

Primary Taxonomy152W00000X

Provider Legal NameCATHERINE CHIA-YU LIUCredential: O.D.

Location Address707 N ALVERNON WAY STE 301Tucson, AZ 85711-1848

Mailing Address707 N Alvernon Way Ste 301Tucson, AZ 85711-1848

Phone(520) 694-1460

Sole ProprietorYes

Enumeration DateApril 24, 2015

Last NPPES UpdateJune 23, 20265 updates tracked since enumeration

NPPES CertifiedJune 23, 2026

✔ NPI 1376930610 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

Licenses✔ Licensed in AZ · 002952✔ Licensed in NV · 830✔ Licensed in IL · 046011060✔ Licensed in CO · 3390

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

707 N ALVERNON WAY STE 301, Tucson, AZ 85711

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Secondary Practice Locations 2

Location 11585 3rd StFort Johnson, LA 71459-5102 · Phone (337) 531-3277

Location 21650 Cochrane CirFort Carson, CO 80913-4604 · Phone (719) 526-7450 · Fax (877) 813-1756

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Catherine Chia-yu Liu O.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85711 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$127.71 typical visit price

range $55.44 – $168.60

Typical copayment $31.92 (range $13.86 – $42.15)

Most-billed visit code 99204

Established Patient

$69.24 typical visit price

range $17.72 – $137.41

Typical copayment $17.31 (range $4.43 – $34.35)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. BURKE LIEPPMAN OD

Optometrist