YOON SUN SONG
NPI 1508264136
Nurse Practitioner in Sunnyvale, CA
About Yoon Sun Song NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
YOON SUN SONG (NPI 1508264136) is an individual nurse practitioner in Sunnyvale, California, licensed in California (95001730) and active in the NPI registry since December 2014. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Yoon Sun Song is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Yoon Sun Song reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Sunnyvale, CA 94086
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1588721500 (California), NPI 1629301346 (California)
- 2,460 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 94086 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 Yoon Sun Song's NPI number?
The NPI number for Yoon Sun Song is 1508264136. It was assigned to this individual provider in the NPPES registry on December 13, 2014.
Where is Yoon Sun Song located?
Yoon Sun Song practices at 301 Old San Francisco Rd, Sunnyvale, CA 94086. The listed phone number is (408) 730-4360.
What is Yoon Sun Song's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Yoon Sun Song enrolled in Medicare?
Yes. Yoon Sun Song is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Yoon Sun Song's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yoon Sun Song reassigns Medicare benefits to County Of Santa Clara (Sunnyvale, 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 Yoon Sun Song'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 Yoon Sun Song was last updated on June 8, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.