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SOUTHERN ILLINOIS PHYSICIANS GROUP LTD
NPI 1326411927
Chiropractor in Greenville, IL

Active since November 04, 2015
203 E MAIN ST, GREENVILLE, IL 62246(618) 692-6700(618) 692-6711 Get Directions Write a Review

NPPES record last updated: November 4, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Southern Illinois Physicians Group Ltd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SOUTHERN ILLINOIS PHYSICIANS GROUP LTD (NPI 1326411927) is a healthcare organization registered as a chiropractor in Greenville, Illinois and active in the NPI registry since November 2015. The organization lists David M Thayer, President, as its authorized official.

NPPES Registry Identity

NPI1326411927
Entity TypeOrganization
Primary Taxonomy111N00000X
Legal Business NameSOUTHERN ILLINOIS PHYSICIANS GROUP LTD
Location Address203 E MAIN STGreenville, IL 62246-1810
Mailing AddressPo Box 997Edwardsville, IL 62025-0997 · (618) 692-6700 · Fax (618) 692-6711
Phone(618) 692-6700
Fax(618) 692-6711
Organization SubpartNo
Authorized OfficialDavid M ThayerPresident · (618) 789-0012
Enumeration DateNovember 4, 2015
✔ NPI 1326411927 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
203 E MAIN ST, Greenville, IL 62246
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Southern Illinois Physicians Group Ltd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Southern Illinois Physicians Group Ltd, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Lance Rahden, D.C.
Chiropractic
NPI 1841563004
203 E MAIN ST
Greenville, IL 62246
(618) 664-3001
✔ Accepts MedicareSame address
David Thayer, DC
Chiropractic
NPI 1689642951
340 S FILLMORE ST
Edwardsville, IL 62025
(618) 692-6700
✔ Accepts Medicare30 mi

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 Southern Illinois Physicians Group Ltd's NPI number?

The NPI number for Southern Illinois Physicians Group Ltd is 1326411927. It was assigned to this organization in the NPPES registry on November 4, 2015.

Where is Southern Illinois Physicians Group Ltd located?

Southern Illinois Physicians Group Ltd is located at 203 E Main St, Greenville, IL 62246. The listed phone number is (618) 692-6700.

What is Southern Illinois Physicians Group Ltd's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Southern Illinois Physicians Group Ltd enrolled in Medicare?

Yes. Southern Illinois Physicians Group Ltd is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Southern Illinois Physicians Group Ltd?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Chiropractic, reassign their Medicare billing to Southern Illinois Physicians Group Ltd. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Southern Illinois Physicians Group Ltd was last updated on November 4, 2015. 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.