KENNETH ONG CAO OD
NPI 1124515309
Optometrist in Rosemead, CA
About Kenneth Ong Cao Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KENNETH ONG CAO OD (NPI 1124515309) is an individual optometrist in Rosemead, California, licensed in California (34145TLG) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Kenneth Ong Cao Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Kenneth Cao reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Monterey Park, CA 91754
- Reassigned Medicare billing, California enrollment
- 3 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91770 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Kenneth Cao's NPI number?
The NPI number for Kenneth Cao is 1124515309. It was assigned to this individual provider in the NPPES registry on April 13, 2018.
Where is Kenneth Cao located?
Kenneth Cao practices at 9212 Valley Blvd, Rosemead, CA 91770. The listed phone number is (626) 288-2308.
What is Kenneth Cao's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Kenneth Cao enrolled in Medicare?
Yes. Kenneth Cao is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Kenneth Cao's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kenneth Cao reassigns Medicare benefits to Eng Medical Associates (Monterey Park, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Kenneth Cao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kenneth Cao accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Providence Health Plan list Kenneth Cao as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Kenneth Cao was last updated on February 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Kenneth Ong Cao, OD · NPI 1124515309
Optometrist provider in Rosemead, California. Individual provider, active in the CMS NPPES registry since April 13, 2018.
## Identity
- **NPI:** 1124515309 (Entity type: Individual)
- **Enumerated:** April 13, 2018
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 34145TLG (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9212 VALLEY BLVD, Rosemead, CA 91770-1900
- **Phone:** (626) 288-2308
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Eng Medical Associates (NPI 1295802643, Monterey Park, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 15, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1124515309) · Data from the CMS NPPES public registry.