Ernie Chan Nghia, OD
Optometrist · Norwalk, CA
Ernie Chan Nghia, OD is an optometrist with a practice address in Norwalk, California, and NPI 1740824010, issued on Oct 30, 2019. Check the license (California 34351TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ernie Chan Nghia
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 34351TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 12324 Hoxie Ave, Norwalk, CA 90650
- Phone
- (562) 929-4499
- Enumerated
- Oct 30, 2019
- Record last updated
- Oct 30, 2019 (not updated in 7 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 12324 Hoxie Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susana CuanPharmacist1770869075
- Vicky Hoggatt, PHARM D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1891070124
- Ashley Lam, PHARMDPharmacist1073147047
- Greg Pearl, ODOptometrist1639232838
Verify Ernie Chan Nghia in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 34351TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average optometrist in 2024
12 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
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: $1,984.47
20 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.
Ernie Chan Nghia among 8,308 optometrist records in California
Ernie Chan Nghia, 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 2019, is newer than 81% of them.
- NPI issued2019 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2019 · 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 Norwalk → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Quynh Alcazar, ODNorwalk, CA 906501609599356
- Christopher Ciampa, O.D.Norwalk, CA 906501518952498
- Paul Crismon, O. D.Norwalk, CA 906501417937087
- Sydney Hong, O.D.Norwalk, CA 906501114018868
- Esther Lan, O.D.Norwalk, CA 906501275845117
- John Larcabal, O.D.Norwalk, CA 906501639172273
- Michael Lee, O.D.Norwalk, CA 906501083820609
- Roger Nomura, O.D.Norwalk, CA 906501861564254
Common questions
What is Ernie Chan Nghia, OD's NPI number?
Ernie Chan Nghia, OD's National Provider Identifier (NPI) is 1740824010, issued on Oct 30, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Ernie Chan Nghia, OD located?
The NPPES record lists a practice address at 12324 Hoxie Ave, Norwalk, CA, 90650. Phone: (562) 929-4499. Providers update this record themselves, so call before visiting.
How can I verify Ernie Chan Nghia, OD's license?
NPPES lists California license number 34351TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ernie Chan Nghia, OD prescribe under Medicare Part D?
In 2024, Ernie Chan Nghia, OD had 12 Medicare Part D claims; 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.