May Chan, O.D.
Optometrist · Ventura, CA
May Chan, O.D. is an optometrist with a practice address in Ventura, California, and NPI 1891179545, issued on Jul 13, 2015. Check the license (California 15355TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- May Chan
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 15355TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 S Wells RD, Ventura, CA 93004
- Phone
- (805) 659-1740
- Enumerated
- Jul 13, 2015
- Record last updated
- Jul 17, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150731015508); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 200 S Wells RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Marisela Cabral-Centeno, MSWClinical Social Worker1255597787
- Julia Callaghan, ASW36282Mental Health Counselor1356696140
Verify 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 15355TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average optometrist in 2024
18 Medicare Part D claims for 13 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 67% of claims.
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.
Industry payments in 2024: $674.07
24 payments; by number, the most common kind was food and beverage; the largest payer was Harrow Eye, LLC. 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
- Eye Treatment Center, AN Incorporated Medical Group, IncLong Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
May Chan among 8,308 optometrist records in California
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 2015, is newer than 71% of them.
- NPI issued2015 · 71% of these records are older, 27% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2015 · median 2008 among the 3,573 with a school on file
- Record last updated2015 · 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).
51 optometrist records list a practice address in Ventura
They are 51 of the 4,435 NPPES records with a practice address in Ventura, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Ventura → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Samiha Ali, ODVentura, CA 930041043054836
- Debon Crews, ODVentura, CA 930041073864385
- Gary Frick, ODVentura, CA 930041962498030
- Warren Giss, ODVentura, CA 930041659425635
- Daisy HoVentura, CA 930041043998776
- Ragi MaamariVentura, CA 930041083123947
- Bobby Smith, O.D.Ventura, CA 930041023320504
- Shirley Chio, O.D.Ventura, CA 930031871960021
Common questions
What is May Chan, O.D.'s NPI number?
May Chan, O.D.'s National Provider Identifier (NPI) is 1891179545, issued on Jul 13, 2015. An NPI identifies a provider in billing; it is not a license.
Where is May Chan, O.D. located?
The NPPES record lists a practice address at 200 S Wells RD, Ventura, CA, 93004. Phone: (805) 659-1740. Providers update this record themselves, so call before visiting.
How can I verify May Chan, O.D.'s license?
NPPES lists California license number 15355TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does May Chan, O.D. prescribe under Medicare Part D?
In 2024, May Chan, O.D. had 18 Medicare Part D claims for 13 beneficiaries; 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.