NPPES file of Aug 9, 2026

Kathy Trinh Hoang, O.D.

Optometrist · Mission Viejo, CA

Kathy Trinh Hoang, O.D. is an optometrist with a practice address in Mission Viejo, California, and NPI 1346904935, issued on Oct 29, 2021. Check the license (California OPT35047-TLG, 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
1346904935
Name
Kathy Trinh Hoang
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
OPT35047-TLG CA
Self-reported in NPPES; status is on the state search
Practice location
25982 Pala Ste 270, Mission Viejo, CA 92691
Phone
(949) 951-1424
Enumerated
Oct 29, 2021
Record last updated
Oct 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20220706002372); 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.
Download card Updates feed

Verify Kathy Trinh Hoang 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 OPT35047-TLG
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $24.29

1 payment: food and beverage; the largest payer was Sun Pharmaceutical Industries 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. Kathy Hoang$24.29
  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 2 group practices

  1. Fifth Optometric Care OF CaliforniaLake Forest, CA
  2. Mercy Eye Care Medical Group IncLos Angeles, CA

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

Kathy Trinh Hoang among 8,308 optometrist records in California

Kathy Trinh Hoang, 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 2021, is newer than 86% of them.

  • NPI issued2021 · 86% of these records are older, 11% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2019 · median 2008 among the 3,573 with a school on file
  • 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).

58 optometrist records list a practice address in Mission Viejo

They are 58 of the 2,156 NPPES records with a practice address in Mission Viejo, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Leila Ahmadi, O.D.Mission Viejo, CA 926911962595009
  2. Atousa Attar, O.D.Mission Viejo, CA 926911689619512
  3. Diana Ciobanu, O.D.Mission Viejo, CA 926911013002179
  4. James Dugue, O.D.Mission Viejo, CA 926911659306330
  5. Kathryn Fallon Mijailovic, O.D.Mission Viejo, CA 926911659436426
  6. Keith Farson, O.D.Mission Viejo, CA 926911366419798
  7. Jean Feneis, O.D.Mission Viejo, CA 926911538224308
  8. Linda Hsieh, O.D.Mission Viejo, CA 926911205846961

Common questions

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

Kathy Trinh Hoang, O.D.'s National Provider Identifier (NPI) is 1346904935, issued on Oct 29, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Kathy Trinh Hoang, O.D. located?

The NPPES record lists a practice address at 25982 Pala Ste 270, Mission Viejo, CA, 92691. Phone: (949) 951-1424. Providers update this record themselves, so call before visiting.

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

NPPES lists California license number OPT35047-TLG, 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.