NPPES file of Aug 9, 2026

Catherine Liu

Optometrist · Portland, OR

Catherine Liu is an optometrist with a practice address in Portland, Oregon, and NPI 1346041936, issued on Mar 20, 2025. Check the license (Oregon 4790, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1346041936
Name
Catherine Liu
Primary taxonomy
Optometrist 152W00000X
License number
4790 OR
Self-reported in NPPES; status is on the state search
Practice location
3303 S Bond Ave, Portland, OR 97239
Phone
(503) 494-3000
Enumerated
Mar 20, 2025
Record last updated
Aug 4, 2025
Fax
(503) 418-0843
Medicare enrollment
Enrolled (PECOS I20251030004266); accepts Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3303 S Bond Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amged Abdelaziz, MDInterventional Cardiology Physician1972703536
  2. Melissa Adair, ARNPFamily Nurse Practitioner1023590197
  3. Alyssa Anthea Adriano, DNP, FNP-C, BSN-RNFamily Nurse Practitioner1346727179
  4. Oluwadamilare Ajayi, MDDermatopathology Physician1063948487
  5. Jeffrey Albright, MDColon & Rectal Surgery Physician1174631782
  6. Maile Altier, PT, DPTPhysical Therapist1194496786

Verify Catherine Liu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license 4790
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. University Professional ServicesAstoria, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Optometrist providers in Oregon

There are 944 optometrist records in Oregon.

Other optometrist records in Oregon

  1. James Adamek, ODEagle Point, OR1568660199
  2. Brittany Adams, O.D.Albany, OR1265732978
  3. Makayla Adams, ODMyrtle Creek, OR1790461911
  4. Shelly Adams, O.D.White City, OR1396908075
  5. Samuel Adelman, O.D.Happy Valley, OR1043545122
  6. Brett Agost, O.D.Gresham, OR1326030883
  7. Dane AgostGresham, OR1376461657
  8. Andrew Aker, O.D.Portland, OR1154520906
  9. Joseph An, O.D.Gresham, OR1235271511
  10. Anna Anderson, O.D.Portland, OR1376707984

Common questions

What is Catherine Liu's NPI number?

Catherine Liu's National Provider Identifier (NPI) is 1346041936, issued on Mar 20, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Catherine Liu located?

The NPPES record lists a practice address at 3303 S Bond Ave, Portland, OR, 97239. Phone: (503) 494-3000. Providers update this record themselves, so call before visiting.

How can I verify Catherine Liu's license?

NPPES lists Oregon license number 4790, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.