NPPES file of Aug 9, 2026

Thy Thy Nguyen, O.D.

Optometrist · Garden Grove, CA

Thy Thy Nguyen, O.D. is an optometrist with a practice address in Garden Grove, California, and NPI 1750490413, issued on Aug 29, 2006. Check the license (California 12746T, 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
1750490413
Name
Thy Thy Nguyen
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
12746T CA
Self-reported in NPPES; status is on the state search
Practice location
12828 Harbor Blvd Ste 330, Garden Grove, CA 92840
Phone
(714) 534-8100
Enumerated
Aug 29, 2006
Record last updated
Nov 13, 2024
Fax
(714) 534-1345
Medicare enrollment
Enrolled (PECOS I20090601000526); accepts Medicare assignment
Medical or professional school
New England College Of Optometry, 2004
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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Verify Thy Thy 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 12746T
    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
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14.1 times the Medicare Part D claims of the average optometrist in 2024

3,911 Medicare Part D claims for 777 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.

  1. Thy Nguyen3,911
  2. Specialty average277

Most prescribed

  1. Latanoprost1,021 claims
  2. Dorzolamide-Timolol539 claims
  3. Lumigan502 claims
  4. Restasis365 claims
  5. Prednisolone Acetate244 claims
  6. Cyclosporine242 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.

Industry payments in 2024: $297.50

13 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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. Thy Nguyen$297.50
  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. Retina Institute OF California Medical Group, A California Medical ParDowney, CA

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

Thy Thy Nguyen among 8,308 optometrist records in California

Thy Thy 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 66% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2004 · median 2008 among the 3,573 with a school on file
  • Record last updated2024 · 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).

48 optometrist records list a practice address in Garden Grove

They are 48 of the 4,572 NPPES records with a practice address in Garden Grove, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Long Do, O.D.Garden Grove, CA 928401528027273
  2. Ann Gaylord, O.D.Garden Grove, CA 928401851561930
  3. Christyn Mai, O.D.Garden Grove, CA 928401518043645
  4. Joel Marutani, ODGarden Grove, CA 928401619025624
  5. Dawn Miller, O.D.Garden Grove, CA 928401760435580
  6. Nancy Nguyen, O.D.Garden Grove, CA 928401689786378
  7. Mindy Nguyen, ODGarden Grove, CA 928401366739617
  8. Vincent Uy, O.D.Garden Grove, CA 928401093881518

Common questions

What is Thy Thy Nguyen, O.D.'s NPI number?

Thy Thy Nguyen, O.D.'s National Provider Identifier (NPI) is 1750490413, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thy Thy Nguyen, O.D. located?

The NPPES record lists a practice address at 12828 Harbor Blvd Ste 330, Garden Grove, CA, 92840. Phone: (714) 534-8100. Providers update this record themselves, so call before visiting.

How can I verify Thy Thy Nguyen, O.D.'s license?

NPPES lists California license number 12746T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

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

In 2024, Thy Thy Nguyen, O.D. had 3,911 Medicare Part D claims for 777 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions 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.