Ngoc Trieu, O.D.
Optometrist · Torrance, CA
Ngoc Trieu, O.D. is an optometrist with a practice address in Torrance, California, and NPI 1245462472, issued on Aug 21, 2009. Check the license (California 13721, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ngoc Trieu
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 13721 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3525 W Carson St Ste 30A, Torrance, CA 90503
- Phone
- (310) 370-0016
- Enumerated
- Aug 21, 2009
- Record last updated
- Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Ngoc Trieu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 13721Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average optometrist in 2024
50 Medicare Part D claims for 25 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Latanoprost18 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: $61.62
3 payments; by number, the most common kind was food and beverage; the largest payer was Dompe US, 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Ngoc Trieu among 8,308 optometrist records in California
Ngoc Trieu, 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 2009, is newer than 57% of them.
- NPI issued2009 · 57% of these records are older, 41% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2021 · 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).
Optometrist providers in California
There are 8,308 optometrist records in California.
All 8,308 in California → Every provider in Torrance → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Geri Bonde, O.D.Torrance, CA 905031316982556
- Jessica Chang, O.D.Torrance, CA 905031972667889
- Albert Chun, O.D.Torrance, CA 905031952378010
- David Cloutier, O.D.Torrance, CA 905031578506549
- Jeffrey Fleming, O.D.Torrance, CA 905031679542989
- Deborah Geering-Fend, O.D.Torrance, CA 905031669553871
- Emily Kim, O.D.Torrance, CA 905031679689863
- Grace Kuo, O.D.Torrance, CA 905031588711519
Common questions
What is Ngoc Trieu, O.D.'s NPI number?
Ngoc Trieu, O.D.'s National Provider Identifier (NPI) is 1245462472, issued on Aug 21, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Ngoc Trieu, O.D. located?
The NPPES record lists a practice address at 3525 W Carson St Ste 30A, Torrance, CA, 90503. Phone: (310) 370-0016. Providers update this record themselves, so call before visiting.
How can I verify Ngoc Trieu, O.D.'s license?
NPPES lists California license number 13721, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ngoc Trieu, O.D. prescribe under Medicare Part D?
In 2024, Ngoc Trieu, O.D. had 50 Medicare Part D claims for 25 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.