DR. STEPHEN J RUFFENACH DO
NPI 1821054156
Internal Medicine in Tucson, AZ
About Dr. Stephen J Ruffenach Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN J RUFFENACH DO (NPI 1821054156) is an individual internal medicine provider in Tucson, Arizona, licensed in Arizona (2640) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Stephen J Ruffenach Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Stephen Ruffenach reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tucson, AZ 85741
- Reassigned Medicare billing, Arizona enrollment
- 664 clinicians in this Medicare group
Tucson, AZ 85704
- Reassigned Medicare billing, Arizona enrollment
- 296 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 85741 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
TUCSON, AZ 85741
TUCSON, AZ 85741
TUCSON, AZ 85741
TUCSON, AZ 85741
TUCSON, AZ 85741
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 Stephen Ruffenach's NPI number?
The NPI number for Stephen Ruffenach is 1821054156. It was assigned to this individual provider in the NPPES registry on April 25, 2006.
Where is Stephen Ruffenach located?
Stephen Ruffenach practices at 6200 N La Cholla Blvd, Tucson, AZ 85741. The listed phone number is (520) 469-8780.
What is Stephen Ruffenach's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Stephen Ruffenach enrolled in Medicare?
Yes. Stephen Ruffenach is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Stephen Ruffenach's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Ruffenach reassigns Medicare benefits to 2 organizations: Northwest Hbp Medical Services LLC (Tucson, AZ) and Northwest Allied Physicians LLC (Tucson, AZ). 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 Stephen Ruffenach'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 Stephen Ruffenach was last updated on October 10, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.