AFFILIATED ONCOLOGISTS, LLC
NPI 1225314362
Internal Medicine - Medical Oncology in Oak Lawn, IL
About Affiliated Oncologists, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AFFILIATED ONCOLOGISTS, LLC (NPI 1225314362) is a healthcare organization registered as a medical oncology in Oak Lawn, Illinois and active in the NPI registry since November 2011. The organization lists Robert Roig, Vp, Managed Care And Physician Serv, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 3
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)
Affiliated Oncologists, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
57Medicare enrollment records show 57 clinicians reassign Medicare billing to Affiliated Oncologists, LLC, which bills Medicare for the services they deliver. Of these, 12 practice at this address and 33 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 6
Nearest to this location (20)
See all 57Source: 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 Affiliated Oncologists, LLC's NPI number?
The NPI number for Affiliated Oncologists, LLC is 1225314362. It was assigned to this organization in the NPPES registry on November 2, 2011.
Where is Affiliated Oncologists, LLC located?
Affiliated Oncologists, LLC is located at 4400 W 95th St Suite 311, Oak Lawn, IL 60453. The listed phone number is (310) 335-4000.
What is Affiliated Oncologists, LLC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Affiliated Oncologists, LLC enrolled in Medicare?
Yes. Affiliated Oncologists, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Affiliated Oncologists, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 57 clinicians in 6 Medicare specialties reassign their Medicare billing to Affiliated Oncologists, 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. The largest specialties are Hematology/Oncology (18), Nurse Practitioner (17) and Radiation Oncology (9). Of these, 12 practice at this address and 33 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Affiliated Oncologists, LLC accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Absolute Total Care, Ambetter from Arkansas Health & Wellness and Ambetter from Buckeye Health Plan and 30 other insurers list Affiliated Oncologists, 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 Affiliated Oncologists, LLC was last updated on November 2, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Affiliated Oncologists, Llc · NPI 1225314362
Medical Oncology organization in Oak Lawn, Illinois. Organization record, active in the CMS NPPES registry since November 2, 2011.
## Identity
- **NPI:** 1225314362 (Entity type: Organization)
- **Enumerated:** November 2, 2011
- **Primary specialty:** Internal Medicine - Medical Oncology · taxonomy 207RX0202X
- **Organization subpart:** No
- **Authorized official:** Robert Roig, VP, MANAGED CARE AND PHYSICIAN SERV
## Practice location
- **Address:** 4400 W 95TH ST, SUITE 311, Oak Lawn, IL 60453-2654
- **Phone:** (310) 335-4000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 57 clinicians in 6 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Hematology/Oncology (18), Nurse Practitioner (17), Radiation Oncology (9); 12 practice at this address and 33 within 10 miles; [full list](https://npiprofile.com/npi/1225314362/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 2, 2011
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Source: [NPI Profile](https://npiprofile.com/npi/1225314362) · Data from the CMS NPPES public registry.