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Southern Illinois Medical Services, Nfp

Rural Health Clinic/Center in Herrin, IL · enumerated 2011 · authorized official Warren Ladner, Senior Vp Chief Financial Officer.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1477820900

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Registry record

Entity type Organization (Type 2)
Legal business name Southern Illinois Medical Services, Nfp
Other name <Unavail>
Parent organization Southern Illinois Hospital Services
Practice address 405 Rushing Dr, Herrin, IL, 62948
Phone (618) 993-3300
Fax (618) 993-0262
Enumeration date Nov 29, 2011
Last updated in NPPES Apr 13, 2026

Taxonomy & classification

261QR1300X Rural Health Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Warren Ladner
Title Senior Vp Chief Financial Officer
Phone (618) 457-5200

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Southern Illinois Medical Services, Nfp?
The NPI for Southern Illinois Medical Services, Nfp is 1477820900, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Southern Illinois Medical Services, Nfp?
NPPES lists Warren Ladner (Senior Vp Chief Financial Officer) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-13.