REX MEDICAL SERVICES LLC
NPI 1124575725
Internal Medicine in Chicago Heights, IL
About Rex Medical Services Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
REX MEDICAL SERVICES LLC (NPI 1124575725) is a healthcare organization registered as an internal medicine in Chicago Heights, Illinois and active in the NPI registry since September 2016. The organization lists Christian Oyibe, N.p., as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Rex Medical Services Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Rex Medical Services LLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Rex Medical Services LLC's NPI number?
The NPI number for Rex Medical Services LLC is 1124575725. It was assigned to this organization in the NPPES registry on September 1, 2016.
Where is Rex Medical Services LLC located?
Rex Medical Services LLC is located at 17 Olympic Vlg # 3B, Chicago Heights, IL 60411. The listed phone number is (708) 204-7612.
What is Rex Medical Services LLC's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Rex Medical Services LLC enrolled in Medicare?
Yes. Rex Medical Services LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Rex Medical Services LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Nurse Practitioner) reassigns their Medicare billing to Rex Medical Services 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Rex Medical Services LLC was last updated on September 9, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Rex Medical Services Llc · NPI 1124575725
Internal Medicine organization in Chicago Heights, Illinois. Organization record, active in the CMS NPPES registry since September 1, 2016.
## Identity
- **NPI:** 1124575725 (Entity type: Organization)
- **Enumerated:** September 1, 2016
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Christian Oyibe, N.P.
## Practice location
- **Address:** 17 OLYMPIC VLG, # 3B, Chicago Heights, IL 60411-8101
- **Phone:** (708) 204-7612
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Nurse Practitioner) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 9, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1124575725) · Data from the CMS NPPES public registry.