Southern Illinois Sleep Institute
NPI 1811954944 · Sleep Disorder Diagnostic Clinic/Center · Marion, IL
Southern Illinois Sleep Institute is a Sleep Disorder Diagnostic Clinic/Center organization in Marion, IL (NPI 1811954944).
Provider details
- NPI number
- 1811954944
- Entity type
- Organization
- Primary specialty
- Sleep Disorder Diagnostic Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Anita Hopkin, Billing Manager(314) 645-5855
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
Registry dates
- Enumerated
- 2006-05-01
- Last updated
- 2008-01-18
Frequently asked questions
- What is Southern Illinois Sleep Institute's NPI number?
- Southern Illinois Sleep Institute's National Provider Identifier (NPI) is 1811954944, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Southern Illinois Sleep Institute?
- Southern Illinois Sleep Institute is classified in the NPPES registry as Sleep Disorder Diagnostic Clinic/Center (Ambulatory Health Care Facilities).
- Where is Southern Illinois Sleep Institute located?
- Southern Illinois Sleep Institute's practice location on file with NPPES is 105 Airway Dr, Marion, IL 62959-5872.
- What is Southern Illinois Sleep Institute's phone number?
- The practice phone number listed in the NPPES registry for Southern Illinois Sleep Institute is (618) 997-5500.
- Who is the authorized official for Southern Illinois Sleep Institute?
- The authorized official listed on Southern Illinois Sleep Institute's NPPES record is Anita Hopkin, Billing Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Southern Illinois Sleep Institute's NPI active?
- Yes — Southern Illinois Sleep Institute's NPI (1811954944) is active in the NPPES registry as of the last update on 2008-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.