DR. ILIJAS GUSMIROVIC D.O.
NPI 1861624975
Anesthesiology in Maryville, IL
About Dr. Ilijas Gusmirovic D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ILIJAS GUSMIROVIC D.O. (NPI 1861624975) is an individual anesthesiology provider in Maryville, Illinois, licensed in Illinois (036135225) and active in the NPI registry since August 2009. He is enrolled in Medicare PECOS, is affiliated with Missouri Baptist Medical Center, and maintains a secondary practice location in Saint Louis.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Ilijas Gusmirovic D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Ilijas Gusmirovic reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63136
- Reassigned Medicare billing, Illinois and Missouri enrollments
- Medicare enrollment name: Midwest Anesthesia Providers Sc
- 253 clinicians in this Medicare group
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 142 clinicians in this Medicare group
Saint Louis, MO 63131
- Reassigned Medicare billing, Missouri enrollment
- 102 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Missouri Baptist Medical Center
Acute Care Hospitals · Town And Country, MOChristian Hospital Northeast
Acute Care Hospitals · Saint Louis, MOBarnes-Jewish St Peters Hospital
Acute Care Hospitals · Saint Peters, MOMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MARYVILLE, IL 62062
MARYVILLE, IL 62062
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 Ilijas Gusmirovic's NPI number?
The NPI number for Ilijas Gusmirovic is 1861624975. It was assigned to this individual provider in the NPPES registry on August 23, 2009.
Where is Ilijas Gusmirovic located?
Ilijas Gusmirovic practices at 6800 State Route 162, Maryville, IL 62062. The listed phone number is (314) 577-8000.
What is Ilijas Gusmirovic's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Ilijas Gusmirovic enrolled in Medicare?
Yes. Ilijas Gusmirovic is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Ilijas Gusmirovic's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ilijas Gusmirovic reassigns Medicare benefits to 3 organizations: Midwest Anesthesia Providers S.C (Saint Louis, MO), Ssm Health Slu Hospital Anesthesia Physician Billing, LLC (Saint Louis, MO) and Missouri Baptist Medical Center (Saint Louis, MO). Each 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 Ilijas Gusmirovic's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ilijas Gusmirovic affiliated with any hospitals?
According to CMS data, Ilijas Gusmirovic is affiliated with Missouri Baptist Medical Center, Christian Hospital Northeast and Barnes-Jewish St Peters Hospital.
When was this NPI record last updated?
The NPPES record for Ilijas Gusmirovic was last updated on December 23, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 months 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.
# Dr. Ilijas Gusmirovic, D.O. · NPI 1861624975
Anesthesiology physician in Maryville, Illinois. Individual provider, active in the CMS NPPES registry since August 23, 2009.
## Identity
- **NPI:** 1861624975 (Entity type: Individual)
- **Enumerated:** August 23, 2009
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 036135225 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 6800 STATE ROUTE 162, Maryville, IL 62062-8500
- **Phone:** (314) 577-8000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Midwest Anesthesia Providers S.C (NPI 1295189082, Saint Louis, MO); Ssm Health Slu Hospital Anesthesia Physician Billing, LLC (NPI 1407232804, Saint Louis, MO); Missouri Baptist Medical Center (NPI 1609658905, Saint Louis, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** December 23, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1861624975) · Data from the CMS NPPES public registry.