NPPES file of Aug 9, 2026

Nhi T. Nguyen, O.D.

Optometrist · Corona, CA

Nhi T. Nguyen, O.D. is an optometrist with a practice address in Corona, California, and NPI 1841785326, issued on Jun 26, 2018. Check the license (California 33954, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841785326
Name
Nhi T. Nguyen
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
33954 CA
Self-reported in NPPES; status is on the state search
Practice location
2620 Tuscany St Ste 103, Corona, CA 92881
Phone
(951) 372-9623
Enumerated
Jun 26, 2018
Record last updated
Oct 23, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20191121002383); accepts Medicare assignment
Medical or professional school
Southern California College Of Optometry, 2018
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 2620 Tuscany St Ste 103

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

  1. Evelyn Lee, ODOptometrist1073042941
  2. Trina Patel, O.D.Optometrist1588079404

Verify Nhi T. Nguyen 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 33954
    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

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2.4 times the Medicare Part D claims of the average optometrist in 2024

656 Medicare Part D claims for 166 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.

  1. Nhi Nguyen656
  2. Specialty average277

Most prescribed

  1. Latanoprost338 claims
  2. Timolol Maleate119 claims
  3. Dorzolamide-Timolol41 claims
  4. Brimonidine Tartrate36 claims
  5. Rhopressa16 claims
  6. Xiidra15 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score95.0
  2. Costout of 100 · 30%100.0
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $568.52

12 payments; by number, the most common kind was food and beverage; the largest payer was Carl Zeiss Meditec USA, 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. Nhi Nguyen$568.52
  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.

Bills Medicare through one group practice

  1. Wayne H Martin MD IncDiamond Bar, CA

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

Nhi T. Nguyen among 8,308 optometrist records in California

Nhi T. Nguyen, O.D. 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 fileYes · 43% of these records are
  • Graduated2018 · median 2008 among the 3,573 with a school on file
  • Record last updated2019 · 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).

37 optometrist records list a practice address in Corona

They are 37 of the 3,731 NPPES records with a practice address in Corona, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Jonathan Chan, O.D.Corona, CA 928811093123721
  2. Jeremy Hart, ODCorona, CA 928811427778638
  3. Evelyn Lee, ODCorona, CA 928811073042941
  4. Joseph Nguyen, O.D.Corona, CA 928811295987675
  5. Trina Patel, O.D.Corona, CA 928811588079404
  6. Arash Sadeghian, O.D.Corona, CA 928811447392246
  7. Gary Bell, O.D., M.S. EDUCorona, CA 928821104908623
  8. Lisa Benham, O.D.Corona, CA 928821518936947

Common questions

What is Nhi T. Nguyen, O.D.'s NPI number?

Nhi T. Nguyen, O.D.'s National Provider Identifier (NPI) is 1841785326, issued on Jun 26, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Nhi T. Nguyen, O.D. located?

The NPPES record lists a practice address at 2620 Tuscany St Ste 103, Corona, CA, 92881. Phone: (951) 372-9623. Providers update this record themselves, so call before visiting.

How can I verify Nhi T. Nguyen, O.D.'s license?

NPPES lists California license number 33954, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Nhi T. Nguyen, O.D. prescribe under Medicare Part D?

In 2024, Nhi T. Nguyen, O.D. had 656 Medicare Part D claims for 166 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Nhi T. Nguyen, O.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.