Southern Illinois Medical Services, Nfp
NPI 1770656837 · Internal Medicine Physician · Carbondale, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Southern Illinois Medical Services, Nfp is a Internal Medicine Physician organization in Carbondale, IL (NPI 1770656837).
Provider details
- NPI number
- 1770656837
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Parent organization
- Southern Illinois Hospital Services
- Organization subpart
- Yes
- Authorized official
- Warren Ladner, Senior Vp Chief Financial Officer(618) 457-5200
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Sih Medical Group
Registry dates
- Enumerated
- 2006-11-16
- Last updated
- 2025-01-07
- Certified
- 2025-01-07
Frequently asked questions
- What is Southern Illinois Medical Services, Nfp's NPI number?
- Southern Illinois Medical Services, Nfp's National Provider Identifier (NPI) is 1770656837, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Southern Illinois Medical Services, Nfp?
- Southern Illinois Medical Services, Nfp is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Southern Illinois Medical Services, Nfp located?
- Southern Illinois Medical Services, Nfp's practice location on file with NPPES is 1239 E Main St, Carbondale, IL 62901.
- What is Southern Illinois Medical Services, Nfp's phone number?
- The practice phone number listed in the NPPES registry for Southern Illinois Medical Services, Nfp is (618) 457-5200.
- Does Southern Illinois Medical Services, Nfp accept Medicare?
- Southern Illinois Medical Services, Nfp is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Southern Illinois Medical Services, Nfp?
- The authorized official listed on Southern Illinois Medical Services, Nfp's NPPES record is Warren Ladner, Senior Vp Chief Financial Officer. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Southern Illinois Medical Services, Nfp's NPI active?
- Yes — Southern Illinois Medical Services, Nfp's NPI (1770656837) is active in the NPPES registry as of the last update on 2025-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.