NPPES file of Aug 9, 2026

Mann Trinh, O.D.

Optometrist · Westlake Village, CA

Mann Trinh, O.D. is an optometrist with a practice address in Westlake Village, California, and NPI 1023209038, issued on Aug 5, 2007. Check the license (California 13284, 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
1023209038
Name
Mann Trinh
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
13284 CA
Self-reported in NPPES; status is on the state search
Practice location
277 Hampshire RD, Westlake Village, CA 91361
Phone
(805) 495-4625
Enumerated
Aug 5, 2007
Record last updated
Jan 18, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(805) 496-2020
Medicare enrollment
Enrolled (PECOS I20100325000694); accepts Medicare assignment
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 Mann Trinh 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 13284
    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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62% fewer Medicare Part D claims than the average optometrist in 2024

106 Medicare Part D claims for 54 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.

  1. Mann Trinh106
  2. Specialty average277

Most prescribed

  1. Xdemvy21 claims
  2. Latanoprost18 claims
  3. Neomycin-Polymyxin-Dexameth14 claims
  4. Tobramycin-Dexamethasone14 claims
  5. Timolol Maleate11 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: $13,366.40

48 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. 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. Mann Trinh$13,366
  2. Specialty average$770

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. M Trinh Optometry IncWestlake Village, CA

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

Mann Trinh among 8,308 optometrist records in California

Mann Trinh, 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 2007, is newer than 34% of them.

  • NPI issued2007 · 34% of these records are older, 46% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2007 · median 2008 among the 3,573 with a school on file
  • Record last updated2014 · 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).

15 optometrist records list a practice address in Westlake Village

They are 15 of the 1,397 NPPES records with a practice address in Westlake Village, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Dianna Aliav, ODThousand Oaks, CA 913611851079354
  2. Adelina Babadostov, ODWestlake Village, CA 913611174326755
  3. Min A Baek, ODWestlake Village, CA 913611679118749
  4. Alique Boulgourjian, ODWestlake Village, CA 913611891569356
  5. Margit Craig, O.D.Westlake Village, CA 913611124024294
  6. Benica Eyvazzadeh, O.D.Thousand Oaks, CA 913611225070600
  7. Ronald Goldstein, O.D.Thousand Oaks, CA 913611659470144
  8. Steven Henteleff, ODWestlake Village, CA 913611538152707

Common questions

What is Mann Trinh, O.D.'s NPI number?

Mann Trinh, O.D.'s National Provider Identifier (NPI) is 1023209038, issued on Aug 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mann Trinh, O.D. located?

The NPPES record lists a practice address at 277 Hampshire RD, Westlake Village, CA, 91361. Phone: (805) 495-4625. Providers update this record themselves, so call before visiting.

How can I verify Mann Trinh, O.D.'s license?

NPPES lists California license number 13284, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Mann Trinh, O.D. prescribe under Medicare Part D?

In 2024, Mann Trinh, O.D. had 106 Medicare Part D claims for 54 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.