Southern Illinois Internal Medicine Ltd
NPI 1376630103 · Internal Medicine Physician · Belleville, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Southern Illinois Internal Medicine Ltd is a Internal Medicine Physician organization in Belleville, IL (NPI 1376630103).
Provider details
- NPI number
- 1376630103
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mazhar Lakho, Owner Physician(618) 235-8720
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
Registry dates
- Enumerated
- 2006-10-05
- Last updated
- 2008-03-07
Frequently asked questions
- What is Southern Illinois Internal Medicine Ltd's NPI number?
- Southern Illinois Internal Medicine Ltd's National Provider Identifier (NPI) is 1376630103, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Southern Illinois Internal Medicine Ltd?
- Southern Illinois Internal Medicine Ltd is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Southern Illinois Internal Medicine Ltd located?
- Southern Illinois Internal Medicine Ltd's practice location on file with NPPES is 4600 Memorial Drive, Belleville, IL 62226-5366.
- What is Southern Illinois Internal Medicine Ltd's phone number?
- The practice phone number listed in the NPPES registry for Southern Illinois Internal Medicine Ltd is (618) 235-8720.
- Does Southern Illinois Internal Medicine Ltd accept Medicare?
- Southern Illinois Internal Medicine Ltd 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 Internal Medicine Ltd?
- The authorized official listed on Southern Illinois Internal Medicine Ltd's NPPES record is Mazhar Lakho, Owner Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Southern Illinois Internal Medicine Ltd's NPI active?
- Yes — Southern Illinois Internal Medicine Ltd's NPI (1376630103) is active in the NPPES registry as of the last update on 2008-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.