NPPES file of Aug 9, 2026

Toan Thanh Thach, O.D.

Optometrist · Daly City, CA

Toan Thanh Thach, O.D. is an optometrist with a practice address in Daly City, California, and NPI 1326201872, issued on Jul 4, 2008. Check the license (California 13510, 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
1326201872
Name
Toan Thanh Thach
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
13510 CA
Self-reported in NPPES; status is on the state search
Practice location
133 Serramonte Ctr, Daly City, CA 94015
Phone
(650) 758-6445
Enumerated
Jul 4, 2008
Record last updated
Jun 18, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(650) 757-1148
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest optometrist records → All 8,308 in California → Look up another NPI →

Also registered at 133 Serramonte Ctr

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

  1. Jennifer Chen, PHARMDPharmacist1366709073
  2. Carrie CheongPharmacist1649817792
  3. Suzanne Galal, PHARMDPharmacist1811258023
  4. Sarah Lamson, PHARMDPharmacist1427664747
  5. Eddie Lau, PHARMDPharmacist1790070407
  6. Sophia Majeed, PHARMDPharmacist1588933840

Verify Toan Thanh Thach 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 13510    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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Industry payments in 2024: $71.73

4 payments; by number, the most common kind was food and beverage; the largest payer was Johnson & Johnson Vision Care, 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. Toan Thach$71.73
  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.

Toan Thanh Thach among 8,308 optometrist records in California

Toan Thanh Thach, 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 2008, is newer than 54% of them.

  • NPI issued2008 · 54% of these records are older, 43% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2010 · 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).

35 optometrist records list a practice address in Daly City

They are 35 of the 1,606 NPPES records with a practice address in Daly City, and 8,308 optometrist records in California.

All 8,308 in California → Every provider in Daly City → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Alice Azus, ODDaly City, CA 940151598814527
  2. David Brosnan, ODDaly City, CA 940151437104502
  3. Eve Chan, O.D.Daly City, CA 940151083601959
  4. Christine Chan, O.D.Daly City, CA 940151295887982
  5. Angela Chu, O.D.Daly City, CA 940151801950738
  6. Alvin Chua, O.D.Daly City, CA 940151356490809
  7. Barbara Fong, O.D.Daly City, CA 940151881744720
  8. Elaine Ho, O.D.Daly City, CA 940151396822441

Common questions

What is Toan Thanh Thach, O.D.'s NPI number?

Toan Thanh Thach, O.D.'s National Provider Identifier (NPI) is 1326201872, issued on Jul 4, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Toan Thanh Thach, O.D. located?

The NPPES record lists a practice address at 133 Serramonte Ctr, Daly City, CA, 94015. Phone: (650) 758-6445. Providers update this record themselves, so call before visiting.

How can I verify Toan Thanh Thach, O.D.'s license?

NPPES lists California license number 13510, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.