YVONNE K. ONG MD
NPI 1558449108
Pediatrics in Daly City, CA
About Yvonne K. Ong Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
YVONNE K. ONG MD (NPI 1558449108) is an individual pediatrics provider in Daly City, California, licensed in California (A66535) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Yvonne K. Ong Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Yvonne Ong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94116
- Reassigned Medicare billing, California enrollment
- 20,078 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 94015 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DALY CITY, CA 94015
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 Yvonne Ong's NPI number?
The NPI number for Yvonne Ong is 1558449108. It was assigned to this individual provider in the NPPES registry on November 1, 2006.
Where is Yvonne Ong located?
Yvonne Ong practices at 395 Hickey Blvd, Daly City, CA 94015. The listed phone number is (650) 742-2000.
What is Yvonne Ong's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Yvonne Ong enrolled in Medicare?
Yes. Yvonne Ong is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Yvonne Ong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yvonne Ong reassigns Medicare benefits to Permanente Medical Group Inc (San Francisco, 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 Yvonne Ong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Yvonne Ong was last updated on December 13, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.