NPPES file of Aug 9, 2026

Harrison Hang Yang, OD

Optometrist · Westminster, CA

Harrison Hang Yang, OD is an optometrist with a practice address in Westminster, California, and NPI 1053806307, issued on Jun 28, 2018. Check the license (California OPT33964, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1053806307
Name
Harrison Hang Yang
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
OPT33964 CA
Self-reported in NPPES; status is on the state search
Practice location
2056 Westminster Mall, Westminster, CA 92683
Phone
(714) 897-0996
Enumerated
Jun 28, 2018
Record last updated
Dec 2, 2022
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2056 Westminster Mall

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

  1. Christina J. HiiOptometrist1427558410
  2. David Huffmire, O.D.Optometrist1023486891
  3. Lance Ikemoto, O.D.Optometrist1356491021
  4. Elaine Kao, O.D.Optometrist1801183975
  5. Jacqueline LewOptometrist1225686215
  6. Holly Vuong, O.D.Optometrist1710038583

Verify Harrison Hang Yang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license OPT33964
    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 California 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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Industry payments in 2024: $992.62

13 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Harrison Yang$992.62
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Harrison Hang Yang among 8,308 optometrist records in California

Harrison Hang Yang, OD is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 79% of them.

  • NPI issued2018 · 79% of these records are older, 19% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2022 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

47 optometrist records list a practice address in Westminster

They are 47 of the 1,306 NPPES records with a practice address in Westminster, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Eric Bass, O.D.Westminster, CA 926831780765289
  2. Thinh Do, ODWestminster, CA 926831932202132
  3. Lance Ikemoto, O.D.Westminster, CA 926831356491021
  4. Lynne Louie Luu, O. D.Westminster, CA 926831922093269
  5. Janet Nghiem, O.D.Westminster, CA 926831588752356
  6. Chau Nguyen, O.D.Westminster, CA 926831962473181
  7. Diem Nguyen, ODWestminster, CA 926831215020490
  8. Tim Nguyen, O.D., M.P.H.Westminster, CA 926831972667079

Common questions

What is Harrison Hang Yang, OD's NPI number?

Harrison Hang Yang, OD's National Provider Identifier (NPI) is 1053806307, issued on Jun 28, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Harrison Hang Yang, OD located?

The NPPES record lists a practice address at 2056 Westminster Mall, Westminster, CA, 92683. Phone: (714) 897-0996. Providers update this record themselves, so call before visiting.

How can I verify Harrison Hang Yang, OD's license?

NPPES lists California license number OPT33964, as entered by the provider. Search the California 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.