Chi Ngoc Quang, O.D.
Optometrist · Castro Valley, CA
Chi Ngoc Quang, O.D. is an optometrist with a practice address in Castro Valley, California, and NPI 1386871705, issued on Jun 11, 2009. Check the license (California 13373, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Chi Ngoc Quang
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 13373 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4041 E Castro Valley Blvd, Castro Valley, CA 94552
- Phone
- (510) 881-8343
- Enumerated
- Jun 11, 2009
- Record last updated
- Mar 29, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 4041 E Castro Valley Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Margaret Francisco, O.D.Optometrist1801337431
- Sheri Heath, O.D.Optometrist1871538512
- Paul Peng, O.D.Optometrist1013049840
- Richard Sequeira, O.D.Optometrist1194871525
Verify Chi Ngoc Quang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 13373Check 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: $49.96
2 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.
Chi Ngoc Quang among 8,308 optometrist records in California
Chi Ngoc Quang, 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 2009, is newer than 57% of them.
- NPI issued2009 · 57% of these records are older, 41% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2011 · 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
- Catherine Academia, O.D.Castro Valley, CA 945521518418565
- Margaret Francisco, O.D.Castro Valley, CA 945521801337431
- Sheri Heath, O.D.Castro Valley, CA 945521871538512
- Sophia Hsiao, O.D.Castro Valley, CA 945521093097149
- Paul Peng, O.D.Castro Valley, CA 945521013049840
- Richard Sequeira, O.D.Castro Valley, CA 945521194871525
- Tiranjan Chattha, O.DLivermore, CA 945511841342177
- Cheyenne Chinea Gengler, O.D.Martinez, CA 945531679861272
Common questions
What is Chi Ngoc Quang, O.D.'s NPI number?
Chi Ngoc Quang, O.D.'s National Provider Identifier (NPI) is 1386871705, issued on Jun 11, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Chi Ngoc Quang, O.D. located?
The NPPES record lists a practice address at 4041 E Castro Valley Blvd, Castro Valley, CA, 94552. Phone: (510) 881-8343. Providers update this record themselves, so call before visiting.
How can I verify Chi Ngoc Quang, O.D.'s license?
NPPES lists California license number 13373, 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.