RADIATION ONCOLOGY ASSOCIATES, LLC
NPI 1033179312
Radiology - Radiation Oncology in Arlington Heights, IL
About Radiation Oncology Associates, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RADIATION ONCOLOGY ASSOCIATES, LLC (NPI 1033179312) is a healthcare organization registered as a radiation oncology in Arlington Heights, Illinois and active in the NPI registry since March 2006. The organization lists Stephen S Nigh, Physician/medical Director, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Radiation Oncology Associates, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
4Medicare enrollment records show 4 clinicians reassign Medicare billing to Radiation Oncology Associates, LLC, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.
Clinicians, nearest first (4)
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 Radiation Oncology Associates, LLC's NPI number?
The NPI number for Radiation Oncology Associates, LLC is 1033179312. It was assigned to this organization in the NPPES registry on March 23, 2006.
Where is Radiation Oncology Associates, LLC located?
Radiation Oncology Associates, LLC is located at 800 W Central Rd, Arlington Heights, IL 60005. The listed phone number is (847) 618-6560.
What is Radiation Oncology Associates, LLC's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Radiation Oncology Associates, LLC enrolled in Medicare?
Yes. Radiation Oncology Associates, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Radiation Oncology Associates, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians, all in Radiation Oncology, reassign their Medicare billing to Radiation Oncology Associates, LLC. A 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 the clinician's services. Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Radiation Oncology Associates, LLC accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Radiation Oncology Associates, LLC 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.
When was this NPI record last updated?
The NPPES record for Radiation Oncology Associates, LLC was last updated on October 25, 2007. 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.
# Radiation Oncology Associates, Llc · NPI 1033179312
Radiation Oncology organization in Arlington Heights, Illinois. Organization record, active in the CMS NPPES registry since March 23, 2006.
## Identity
- **NPI:** 1033179312 (Entity type: Organization)
- **Enumerated:** March 23, 2006
- **Primary specialty:** Radiology - Radiation Oncology · taxonomy 2085R0001X
- **Organization subpart:** No
- **Authorized official:** Stephen Nigh, PHYSICIAN/MEDICAL DIRECTOR
## Practice location
- **Address:** 800 W CENTRAL RD, Arlington Heights, IL 60005-2349
- **Phone:** (847) 618-6560
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 4 clinicians (Radiation Oncology) reassign Medicare billing to this organization (form CMS-855R); 3 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 25, 2007
- **Other identifiers:** Medicare PIN 208882 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1033179312) · Data from the CMS NPPES public registry.