ILLINOIS PATHOLOGIST SERVICES, LLC
NPI 1720218415
Pathology - Clinical Pathology/Laboratory Medicine in Rockford, IL
About Illinois Pathologist Services, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ILLINOIS PATHOLOGIST SERVICES, LLC (NPI 1720218415) is a healthcare organization registered as a clinical pathology/laboratory medicine in Rockford, Illinois and active in the NPI registry since July 2009. The organization lists Diane L Mcgrew, President, Osf Healthcare System, 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)
Illinois Pathologist Services, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
15Medicare enrollment records show 15 clinicians reassign Medicare billing to Illinois Pathologist Services, LLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.
Clinicians, nearest first (15)
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 Illinois Pathologist Services, LLC's NPI number?
The NPI number for Illinois Pathologist Services, LLC is 1720218415. It was assigned to this organization in the NPPES registry on July 16, 2009.
Where is Illinois Pathologist Services, LLC located?
Illinois Pathologist Services, LLC is located at 5666 E. State St, Rockford, IL 61108. The listed phone number is (815) 395-5116.
What is Illinois Pathologist Services, LLC's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Clinical Pathology/Laboratory Medicine, with taxonomy code 207ZP0105X.
Is Illinois Pathologist Services, LLC enrolled in Medicare?
Yes. Illinois Pathologist Services, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Illinois Pathologist Services, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 15 clinicians, all in Pathology, reassign their Medicare billing to Illinois Pathologist 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. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Illinois Pathologist Services, LLC was last updated on February 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Illinois Pathologist Services, Llc · NPI 1720218415
Clinical Pathology/Laboratory Medicine organization in Rockford, Illinois. Organization record, active in the CMS NPPES registry since July 16, 2009.
## Identity
- **NPI:** 1720218415 (Entity type: Organization)
- **Enumerated:** July 16, 2009
- **Primary specialty:** Pathology - Clinical Pathology/Laboratory Medicine · taxonomy 207ZP0105X
- **Organization subpart:** Yes (part of Osf Healthcare System)
- **Authorized official:** Diane Mcgrew, PRESIDENT, OSF HEALTHCARE SYSTEM
## Practice location
- **Address:** 5666 E. STATE ST, Rockford, IL 61108-2425
- **Phone:** (815) 395-5116 · **Fax:** (815) 395-5364
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 15 clinicians (Pathology) reassign Medicare billing to this organization (form CMS-855R); 1 practice at this address and 2 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 14, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1720218415) · Data from the CMS NPPES public registry.