Oh Joo Hwang, O.D.
Optometrist · Anaheim, CA
Oh Joo Hwang, O.D. is an optometrist with a practice address in Anaheim, California, and NPI 1851016869, issued on Oct 11, 2022. Check the license (California 35338, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Oh Joo Hwang
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 35338 CA
Self-reported in NPPES; status is on the state search - Practice location
- 953 N Euclid St, Anaheim, CA 92801
- Phone
- (312) 477-1881
- Enumerated
- Oct 11, 2022
- Record last updated
- May 4, 2025
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Oh Joo Hwang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 35338Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average optometrist in 2024
66 Medicare Part D claims for 36 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.
Most prescribed
- Prednisolone Acetate12 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: $53.12
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.
Oh Joo Hwang among 8,308 optometrist records in California
Oh Joo Hwang, 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 2022, is newer than 89% of them.
- NPI issued2022 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2025 · 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).
115 optometrist records list a practice address in Anaheim
They are 115 of the 9,018 NPPES records with a practice address in Anaheim, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Anaheim → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Edgar BastoAnaheim, CA 928011295879435
- Joyce Chen, O.D.Anaheim, CA 928011821300765
- Tina Do, O.D.Anaheim, CA 928011558331975
- Natalie Duong, O.D.Anaheim, CA 928011528149747
- Anh Duong, O.D.Anaheim, CA 928011518022466
- David Haitz, O.D.Anaheim, CA 928011902956063
- Darlene Karsting, O.D.Anaheim, CA 928011336574623
- Eugene Kim, O.D.Anaheim, CA 928011083813315
Common questions
What is Oh Joo Hwang, O.D.'s NPI number?
Oh Joo Hwang, O.D.'s National Provider Identifier (NPI) is 1851016869, issued on Oct 11, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Oh Joo Hwang, O.D. located?
The NPPES record lists a practice address at 953 N Euclid St, Anaheim, CA, 92801. Phone: (312) 477-1881. Providers update this record themselves, so call before visiting.
How can I verify Oh Joo Hwang, O.D.'s license?
NPPES lists California license number 35338, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Oh Joo Hwang, O.D. prescribe under Medicare Part D?
In 2024, Oh Joo Hwang, O.D. had 66 Medicare Part D claims for 36 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.