Kenneth Ong Cao, OD
Optometrist · Rosemead, CA
Kenneth Ong Cao, OD is an optometrist with a practice address in Rosemead, California, and NPI 1124515309, issued on Apr 13, 2018. Check the license (California 34145TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kenneth Ong Cao
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 34145TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 9212 Valley Blvd, Rosemead, CA 91770
- Phone
- (626) 288-2308
- Enumerated
- Apr 13, 2018
- Record last updated
- Feb 15, 2026
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 9212 Valley Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Trisha Nguyen, O.D.Optometrist1518114834
Verify Kenneth Ong Cao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 34145TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% more Medicare Part D claims than the average optometrist in 2024
342 Medicare Part D claims for 98 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Azelastine Hcl174 claims
- Restasis77 claims
- Cyclosporine41 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: $1,607.01
17 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.
Kenneth Ong Cao among 8,308 optometrist records in California
Kenneth Ong Cao, 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 fileNo · 43% of these records are
- Record last updated2026 · 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).
13 optometrist records list a practice address in Rosemead
They are 13 of the 839 NPPES records with a practice address in Rosemead, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Rosemead → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Gary Chan, ODRosemead, CA 917701033606231
- Vivian Chau, ODRosemead, CA 917701558052951
- Mary Cheng, O.D.Rosemead, CA 917701477582849
- Katie Chu, O.D.Rosemead, CA 917701689756629
- Minh Ho, O.D.Rosemead, CA 917701841281813
- Jenny Hung, O.D.Rosemead, CA 917701457541559
- Joy Kao, ODRosemead, CA 917701134471964
- Kathryn LaRosemead, CA 917701760304919
Common questions
What is Kenneth Ong Cao, OD's NPI number?
Kenneth Ong Cao, OD's National Provider Identifier (NPI) is 1124515309, issued on Apr 13, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth Ong Cao, OD located?
The NPPES record lists a practice address at 9212 Valley Blvd, Rosemead, CA, 91770. Phone: (626) 288-2308. Providers update this record themselves, so call before visiting.
How can I verify Kenneth Ong Cao, OD's license?
NPPES lists California license number 34145TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Kenneth Ong Cao, OD prescribe under Medicare Part D?
In 2024, Kenneth Ong Cao, OD had 342 Medicare Part D claims for 98 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.