John Y. Wong, O.D.
Optometrist · Castro Valley, CA
John Y. Wong, O.D. is an optometrist with a practice address in Castro Valley, California, and NPI 1457371619, issued on Jul 20, 2006. Check the license (California OPT12872T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Y. Wong
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OPT12872T CA
Self-reported in NPPES; status is on the state search - Practice location
- 20211 Patio Dr, Castro Valley, CA 94546
- Phone
- (510) 881-4401
- Enumerated
- Jul 20, 2006
- Record last updated
- Aug 6, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (510) 881-4423
- Medicare enrollment
- Enrolled (PECOS I20060511000104); accepts Medicare assignment
- Medical or professional school
- Southern California College Of Optometry, 2005
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 20211 Patio Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Farrell, PHYSICAL THERAPISTPhysical Therapist1851375240
- Dennis Ingram, PHYSICAL THERAPISTPhysical Therapist1396729364
- Wendy JacobsenMarriage & Family Therapist1346394889
- John Nelson, O.D.Optometrist1922095082
- Trudie Silva, PTPhysical Therapist1376526160
Verify John Y. Wong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT12872TCheck 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: $119.30
6 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision 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.
John Y. Wong among 8,308 optometrist records in California
John Y. Wong, 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 fileYes · 43% of these records are
- Graduated2005 · median 2008 among the 3,573 with a school on file
- Record last updated2014 · 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).
24 optometrist records list a practice address in Castro Valley
They are 24 of the 999 NPPES records with a practice address in Castro Valley, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Castro Valley → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Christina Atkinson, O.D.Castro Valley, CA 945461619981792
- Marc Dea, ODCastro Valley, CA 945461174592646
- Sampson Fong, O. D.Castro Valley, CA 945461396861522
- Stella Levin, O.D.Castro Valley, CA 945461235197138
- Yuanbing Liao, O.D.Castro Valley, CA 945461497060875
- John LiuCastro Valley, CA 945461114949419
- Kaiyun Mai, O.D.Castro Valley, CA 945461730436643
- John Nelson, O.D.Castro Valley, CA 945461922095082
Common questions
What is John Y. Wong, O.D.'s NPI number?
John Y. Wong, O.D.'s National Provider Identifier (NPI) is 1457371619, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Y. Wong, O.D. located?
The NPPES record lists a practice address at 20211 Patio Dr, Castro Valley, CA, 94546. Phone: (510) 881-4401. Providers update this record themselves, so call before visiting.
How can I verify John Y. Wong, O.D.'s license?
NPPES lists California license number OPT12872T, 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.