NPPES file of Aug 9, 2026

Chang D. Chan, O.D.

Optometrist · West Sacramento, CA

Chang D. Chan, O.D. is an optometrist with a practice address in West Sacramento, California, and NPI 1649308545, issued on Mar 1, 2007. Check the license (California 5641TPA, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649308545
Name
Chang D. Chan
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
5641TPA CA
Self-reported in NPPES; status is on the state search
Practice location
1029 Jefferson Blvd, West Sacramento, CA 95691
Phone
(916) 371-3421
Enumerated
Mar 1, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(916) 371-3421
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 1029 Jefferson Blvd

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

  1. Martin Chan, D.D.S.Dentist1801946769
  2. Beatle Tran, PHARMDPharmacist1821081910
  3. Tuan Anh Vo, PHARM.D.Pharmacist1750837365

Verify Chang D. Chan 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 5641TPA    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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Chang D. Chan among 8,308 optometrist records in California

Chang D. Chan, 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 not. Its NPI, issued in 2007, is newer than 34% of them.

  • NPI issued2007 · 34% of these records are older, 46% newer
  • In a Medicare fileNo · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2007 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 8,308 in California → Every provider in West Sacramento → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Susana Belmonte, O.D.West Sacramento, CA 956911821136102
  2. Hoanha Ly, O.D.W Sacramento, CA 956911619343829
  3. Matthew Wampler, ODWest Sacramento, CA 956911134190689
  4. Edward AndersenWinters, CA 956941609804921
  5. Michael Carney, O.D.Vacaville, CA 956881255345377
  6. Bruce Carr, O.D.Vacaville, CA 956881457365678
  7. Hang Nhan, ODVacaville, CA 956881831237569
  8. William Stahlberger, ODVacaville, CA 956881033269907

Common questions

What is Chang D. Chan, O.D.'s NPI number?

Chang D. Chan, O.D.'s National Provider Identifier (NPI) is 1649308545, issued on Mar 1, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Chang D. Chan, O.D. located?

The NPPES record lists a practice address at 1029 Jefferson Blvd, West Sacramento, CA, 95691. Phone: (916) 371-3421. Providers update this record themselves, so call before visiting.

How can I verify Chang D. Chan, O.D.'s license?

NPPES lists California license number 5641TPA, 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. 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.