DR. RHUNJAY JAMES YU M.D.
NPI 1255527024
Urology in Greenbrae, CA
About Dr. Rhunjay James Yu M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RHUNJAY JAMES YU M.D. (NPI 1255527024) is an individual urology provider in Greenbrae, California, licensed in California (A101554) and active in the NPI registry since September 2007. He is enrolled in Medicare PECOS, is affiliated with Good Shepherd Medical Center, and is a graduate of University Of Southern California Keck School Of Medicine (2006).
NPPES Registry Identity
Specialties & Licenses 2
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)
Dr. Rhunjay James Yu M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
6Medicare enrollment records show Rhunjay Yu reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94123
- Reassigned Medicare billing, California enrollment
- 678 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 339 clinicians in this Medicare group
Sonora, CA 95370
- Reassigned Medicare billing, California enrollment
- 127 clinicians in this Medicare group
Oroville, CA 95966
- Reassigned Medicare billing, California enrollment
- 267 clinicians in this Medicare group
Reedley, CA 93654
- Reassigned Medicare billing, California enrollment
- 315 clinicians in this Medicare group
Hermiston, OR 97838
- Reassigned Medicare billing, Oregon enrollment
- Also billed through NPI 1295789667 (Oregon)
- 344 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.
Areas of Expertise CMS Part B claims 19
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Good Shepherd Medical Center
Critical Access Hospitals · Hermiston, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94904 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 6
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Rhunjay Yu's NPI number?
The NPI number for Rhunjay Yu is 1255527024. It was assigned to this individual provider in the NPPES registry on September 14, 2007.
Where is Rhunjay Yu located?
Rhunjay Yu practices at 1000 S Eliseo Dr Ste 201, Greenbrae, CA 94904. The listed phone number is (415) 461-4000.
What is Rhunjay Yu's specialty?
The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.
Is Rhunjay Yu enrolled in Medicare?
Yes. Rhunjay Yu is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Rhunjay Yu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rhunjay Yu reassigns Medicare benefits to 6 organizations: Adventist Health Physicians Network (San Francisco, CA), Regents Univ Of California Ucsf (San Francisco, CA), Sonora Community Hospital (Sonora, CA), Orohealth Corporation A Non Profit Healthcare System (Oroville, CA), Reedley Community Hospital (Reedley, CA) and 1 more organization, listed in the Medicare section above. Each 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 Rhunjay Yu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rhunjay Yu accept?
Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan and Regence BlueCross BlueShield of Oregon list Rhunjay Yu 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.
Is Rhunjay Yu affiliated with any hospitals?
According to CMS data, Rhunjay Yu is affiliated with Good Shepherd Medical Center.
When was this NPI record last updated?
The NPPES record for Rhunjay Yu was last updated on January 27, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.