NPPES file of Aug 9, 2026

Bradford Chang, O.D.

Optometrist · San Francisco, CA

Bradford Chang, O.D. is an optometrist with a practice address in San Francisco, California, and NPI 1770658619, issued on Nov 22, 2006. Check the license (California 10262T, 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
1770658619
Name
Bradford Chang
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
10262T CA
Self-reported in NPPES; status is on the state search
Practice location
929 Clay St Ste 203, San Francisco, CA 94108
Phone
(415) 982-1700
Enumerated
Nov 22, 2006
Record last updated
Feb 15, 2023
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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Verify Bradford Chang 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 10262T
    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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96% fewer Medicare Part D claims than the average optometrist in 2024

11 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Bradford Chang11
  2. Specialty average277

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.

Bradford Chang among 8,308 optometrist records in California

Bradford Chang, 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 66% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2023 · 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.

The 8 optometrist records with the nearest ZIP codes

  1. Rochelle Blumenfeld, O.D.San Francisco, CA 941081679640031
  2. Karen Brandreth, O.D.San Francisco, CA 941081548385412
  3. Alan Chan, O.D.San Francisco, CA 941081285758813
  4. Clifford Chang, O.D.San Francisco, CA 941081558539007
  5. Tina Cheung, O.D.San Francisco, CA 941081306213160
  6. Michael Lee, O.D.San Francisco, CA 941081841359684
  7. Jeffrey Lem, O.D.San Francisco, CA 941081336209733
  8. Katherine Morioka, OD OPTOMETRISTSan Francisco, CA 941081154412690

Common questions

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

Bradford Chang, O.D.'s National Provider Identifier (NPI) is 1770658619, issued on Nov 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Bradford Chang, O.D. located?

The NPPES record lists a practice address at 929 Clay St Ste 203, San Francisco, CA, 94108. Phone: (415) 982-1700. Providers update this record themselves, so call before visiting.

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

NPPES lists California license number 10262T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Bradford Chang, O.D. prescribe under Medicare Part D?

In 2024, Bradford Chang, O.D. had 11 Medicare Part D claims; 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.