DR. DONALD D NASH M.D.
NPI 1548229065
Surgery in Oak Park, IL
About Dr. Donald D Nash M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DONALD D NASH M.D. (NPI 1548229065) is an individual surgery provider in Oak Park, Illinois, licensed in Illinois (036056336) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Donald D Nash M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Donald Nash reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Oak Brook, IL 60523
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Rush University Medical Group
- 2,169 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 5
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60304 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 3
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.
OAK PARK, IL 60304
OAK PARK, IL 60304
OAK PARK, IL 60304
OAK PARK, IL 60304
OAK PARK, IL 60304
OAK PARK, IL 60304
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 Donald Nash's NPI number?
The NPI number for Donald Nash is 1548229065. It was assigned to this individual provider in the NPPES registry on March 22, 2006.
Where is Donald Nash located?
Donald Nash practices at 610 S Maple Ave Suite 2900, Oak Park, IL 60304. The listed phone number is (708) 383-0088.
What is Donald Nash's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Donald Nash enrolled in Medicare?
Yes. Donald Nash is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Donald Nash's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Donald Nash reassigns Medicare benefits to Rush University Medical Center (Oak Brook, 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 Donald Nash'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 Donald Nash was last updated on December 3, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.