RONALD S STUMBRIS MD
NPI 1891858346
General Practice in Tinley Park, IL
About Ronald S Stumbris Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RONALD S STUMBRIS MD (NPI 1891858346) is an individual general practice provider in Tinley Park, Illinois, licensed in Illinois (036-088148) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
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)
Ronald S Stumbris Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ronald Stumbris reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60614
- Reassigned Medicare billing, Illinois enrollment
- 5 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.
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 Stumbris's NPI number?
The NPI number for Ronald Stumbris is 1891858346. It was assigned to this individual provider in the NPPES registry on December 18, 2006.
Where is Ronald Stumbris located?
Ronald Stumbris practices at 18400 Maple Creek Dr Ste 700, Tinley Park, IL 60477. The listed phone number is (708) 448-6720.
What is Ronald Stumbris's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is Ronald Stumbris enrolled in Medicare?
Yes. Ronald Stumbris is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ronald Stumbris's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Stumbris reassigns Medicare benefits to Peak Performance Health Center Ltd (Chicago, IL). 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 Stumbris'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 Stumbris was last updated on June 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.
# Ronald S Stumbris, MD · NPI 1891858346
General Practice physician in Tinley Park, Illinois. Individual provider, active in the CMS NPPES registry since December 18, 2006.
## Identity
- **NPI:** 1891858346 (Entity type: Individual)
- **Enumerated:** December 18, 2006
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **State license:** 036-088148 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 18400 MAPLE CREEK DR STE 700, Tinley Park, IL 60477-3027
- **Phone:** (708) 448-6720
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Peak Performance Health Center Ltd (NPI 1497766257, Chicago, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 25, 2026
- **Other identifiers:** Other 01633957 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1891858346) · Data from the CMS NPPES public registry.