SIH MEDICAL GROUP
NPI 1770656837
Internal Medicine in Carbondale, IL
About Sih Medical Group NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIH MEDICAL GROUP (NPI 1770656837) is a healthcare organization registered as an internal medicine in Carbondale, Illinois and active in the NPI registry since November 2006. The organization holds a CLIA Waiver certificate valid through September 18, 2028 and lists Warren P Ladner, Senior Vp Chief Financial Officer, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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)
Sih Medical Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
702Medicare enrollment records show 702 clinicians reassign Medicare billing to Sih Medical Group, which bills Medicare for the services they deliver. Of these, 258 practice within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 48
Nearest to this location (20)
See all 702Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 14D2084236
Sih Medical Group Dermatology & Plastic Surgery · Carbondale, ILFrequently 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 Southern Illinois Medical Services, Nfp's NPI number?
The NPI number for Southern Illinois Medical Services, Nfp is 1770656837. It was assigned to this organization in the NPPES registry on November 16, 2006. The provider is doing business as Sih Medical Group.
Where is Southern Illinois Medical Services, Nfp located?
Southern Illinois Medical Services, Nfp is located at 1239 E Main St, Carbondale, IL 62901. The listed phone number is (618) 457-5200.
What is Southern Illinois Medical Services, Nfp's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Southern Illinois Medical Services, Nfp enrolled in Medicare?
Yes. Southern Illinois Medical Services, Nfp is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Southern Illinois Medical Services, Nfp?
According to the CMS Revalidation Reassignment List (October 2026 release), 702 clinicians in 48 Medicare specialties reassign their Medicare billing to Southern Illinois Medical Services, Nfp. 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 Nurse Practitioner (146), Emergency Medicine (64) and Certified Registered Nurse Anesthetist (CRNA) (46). Of these, 258 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Southern Illinois Medical Services, Nfp hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 14D2084236) is associated with this NPI, valid through September 18, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Southern Illinois Medical Services, Nfp accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Southern Illinois Medical Services, Nfp 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 Southern Illinois Medical Services, Nfp was last updated on January 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 months 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.
# Sih Medical Group · NPI 1770656837
Internal Medicine organization in Carbondale, Illinois. Organization record, active in the CMS NPPES registry since November 16, 2006.
## Identity
- **NPI:** 1770656837 (Entity type: Organization)
- **Enumerated:** November 16, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Legal business name:** Southern Illinois Medical Services, Nfp
- **Organization subpart:** Yes (part of Southern Illinois Hospital Services)
- **Authorized official:** Warren Ladner, SENIOR VP CHIEF FINANCIAL OFFICER
## Practice location
- **Address:** 1239 E MAIN ST, Carbondale, IL 62901
- **Phone:** (618) 457-5200 · **Fax:** (618) 549-5128
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 702 clinicians in 48 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (146), Emergency Medicine (64), Certified Registered Nurse Anesthetist (CRNA) (46); 258 practice within 10 miles; [full list](https://npiprofile.com/npi/1770656837/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 7, 2025
- **Other identifiers:** Other 3932056 (IL)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1770656837) · Data from the CMS NPPES public registry.