May-May Chan, O.D.
Optometrist · Pittsburg, CA
May-May Chan, O.D. is an optometrist with a practice address in Pittsburg, California, and NPI 1669515169, issued on Feb 14, 2007. Check the license (California 10298T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- May-May Chan
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 10298T CA
Self-reported in NPPES; status is on the state search - Practice location
- 4241 Century Blvd., Pittsburg, CA 94565
- Phone
- (925) 706-4400
- Enumerated
- Feb 14, 2007
- Record last updated
- Sep 17, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (925) 706-4411
- Medicare enrollment
- Enrolled (PECOS I20210908003694); accepts Medicare assignment
- Medical or professional school
- New England College Of Optometry, 1993
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify May-May Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 10298TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $267.90
6 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.
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
- Stephanie Veilleux OD And Winson Ong ODWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
May-May Chan among 8,308 optometrist records in California
May-May 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. 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
- Graduated1993 · median 2008 among the 3,573 with a school on file
- Record last updated2008 · 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.
All 8,308 in California → Every provider in Pittsburg → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Farah Noory, O.D.Pittsburg, CA 945651154478899
- Christine Sager, O.D.Pittsburg, CA 945651508218025
- Michael Sutton, O.D.Pittsburg, CA 945651104022110
- Janice Tarrant, ODPittsburg, CA 945651033251665
- Joseph Trezza, ODPittsburg, CA 945651033299409
- Ezah Cheema, ODPinole, CA 945641356814081
- Radbert Chin, O.D.Pleasanton, CA 945661306078704
- Emily ChohPinole, CA 945641225550130
Common questions
What is May-May Chan, O.D.'s NPI number?
May-May Chan, O.D.'s National Provider Identifier (NPI) is 1669515169, issued on Feb 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is May-May Chan, O.D. located?
The NPPES record lists a practice address at 4241 Century Blvd., Pittsburg, CA, 94565. Phone: (925) 706-4400. Providers update this record themselves, so call before visiting.
How can I verify May-May Chan, O.D.'s license?
NPPES lists California license number 10298T, 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.