DR. RONALD M ROSSEN MD
NPI 1477531614
Internal Medicine - Interventional Cardiology in San Jose, CA
About Dr. Ronald M Rossen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RONALD M ROSSEN MD (NPI 1477531614) is an individual interventional cardiology provider in San Jose, California, licensed in California (G22902) and active in the NPI registry since January 2006. He 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)
Dr. Ronald M Rossen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ronald Rossen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mountain View, CA 94040
- Reassigned Medicare billing, California enrollment
- 57 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 95124 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.
SAN JOSE, CA 95124
SAN JOSE, CA 95124
SAN JOSE, CA 95124
SAN JOSE, CA 95124
SAN JOSE, CA 95124
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 Ronald Rossen's NPI number?
The NPI number for Ronald Rossen is 1477531614. It was assigned to this individual provider in the NPPES registry on January 6, 2006.
Where is Ronald Rossen located?
Ronald Rossen practices at 2581 Samaritan Dr Ste 202, San Jose, CA 95124. The listed phone number is (408) 358-3939.
What is Ronald Rossen's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is Ronald Rossen enrolled in Medicare?
Yes. Ronald Rossen is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ronald Rossen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Rossen reassigns Medicare benefits to Physician Services At El Camino Hospital (Mountain View, 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 Ronald Rossen'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 Ronald Rossen was last updated on March 21, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.