Anthony John E. Castanares, OD
Optometrist · Dublin, CA
Anthony John E. Castanares, OD is an optometrist with a practice address in Dublin, California, and NPI 1235629361, issued on May 15, 2018. Check the license (California 33918TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Anthony John E. Castanares
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 33918TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 7763 Squirrel Creek Cir, Dublin, CA 94568
- Phone
- (925) 548-6143
- Enumerated
- May 15, 2018
- Record last updated
- May 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190903000552); accepts Medicare assignment
- Medical or professional school
- Southern California College Of Optometry, 2017
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Anthony John E. Castanares in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 33918TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average optometrist in 2024
43 Medicare Part D claims for 19 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
Most prescribed
- Erythromycin17 claims
- Latanoprost14 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: $415.67
4 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas 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
- Permanente Medical Group IncSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anthony John E. Castanares among 8,308 optometrist records in California
Anthony John E. Castanares, OD 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 2018, is newer than 79% of them.
- NPI issued2018 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2017 · median 2008 among the 3,573 with a school on file
- Record last updated2018 · 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 Dublin → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Roger Chan, O.D.Dublin, CA 945681912969221
- William Diamond, ODDublin, CA 945681174668065
- Kelli Kawai, ODDublin, CA 945681528497567
- Jonathan Lau, ODDublin, CA 945681558917997
- Marilyn LeDublin, CA 945681265848220
- Kara Lee, O.D.Dublin, CA 945681700133535
- Allen Luong, ODDublin, CA 945681326622796
- Maurice Lynch, ODDublin, CA 945681336230572
Common questions
What is Anthony John E. Castanares, OD's NPI number?
Anthony John E. Castanares, OD's National Provider Identifier (NPI) is 1235629361, issued on May 15, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Anthony John E. Castanares, OD located?
The NPPES record lists a practice address at 7763 Squirrel Creek Cir, Dublin, CA, 94568. Phone: (925) 548-6143. Providers update this record themselves, so call before visiting.
How can I verify Anthony John E. Castanares, OD's license?
NPPES lists California license number 33918TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Anthony John E. Castanares, OD prescribe under Medicare Part D?
In 2024, Anthony John E. Castanares, OD had 43 Medicare Part D claims for 19 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.