ILENE CASTILLE LEWIS MD
NPI 1760641930
Anesthesiology in Belleville, IL
About Ilene Castille Lewis Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ILENE CASTILLE LEWIS MD (NPI 1760641930) is an individual anesthesiology provider in Belleville, Illinois, licensed in Illinois (036176532) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS, is affiliated with Memorial Hospital, and maintains 5 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 5
Other Identifiers 1
Accepted Insurance
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
Ilene Castille Lewis Md 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
5Medicare enrollment records show Ilene Lewis reassigns Medicare billing to 5 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
Mount Pleasant, WI 53405
- Reassigned Medicare billing, Wisconsin enrollment
- 162 clinicians in this Medicare group
Dade City, FL 33525
- Reassigned Medicare billing, Florida enrollment
- 1,287 clinicians in this Medicare group
Roswell, NM 88201
- Reassigned Medicare billing, New Mexico enrollment
- 69 clinicians in this Medicare group
Albuquerque, NM 87106
- Reassigned Medicare billing, New Mexico enrollment
- 2,105 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Memorial Hospital
Acute Care Hospitals · Belleville, ILUnm Hospital
Acute Care Hospitals · Albuquerque, NMOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BELLEVILLE, IL 62226
BELLEVILLE, IL 62226
BELLEVILLE, IL 62226
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 Ilene Lewis's NPI number?
The NPI number for Ilene Lewis is 1760641930. It was assigned to this individual provider in the NPPES registry on June 3, 2008.
Where is Ilene Lewis located?
Ilene Lewis practices at 4500 Memorial Dr, Belleville, IL 62226. The listed phone number is (618) 233-7750.
What is Ilene Lewis's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Ilene Lewis enrolled in Medicare?
Yes. Ilene Lewis 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 Ilene Lewis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ilene Lewis reassigns Medicare benefits to 5 organizations: Midwest Anesthesia Providers S.C (Saint Louis, MO), Racine Anesthesia Services, LLC (Mount Pleasant, WI), Gulf-To-Bay Anesthesiology Associates LLC (Dade City, FL), Roswell Clinic Corp (Roswell, NM) and Unm Medical Group Inc (Albuquerque, NM). 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 Ilene Lewis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ilene Lewis accept?
Health plans from Arkansas Blue Cross and Blue Shield, CHRISTUS Health Plan, Health Advantage and Octave list Ilene Lewis as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Ilene Lewis affiliated with any hospitals?
According to CMS data, Ilene Lewis is affiliated with Memorial Hospital and Unm Hospital.
When was this NPI record last updated?
The NPPES record for Ilene Lewis was last updated on October 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Ilene Castille Lewis, MD · NPI 1760641930
Anesthesiology physician in Belleville, Illinois. Individual provider, active in the CMS NPPES registry since June 3, 2008.
## Identity
- **NPI:** 1760641930 (Entity type: Individual)
- **Enumerated:** June 3, 2008
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 036176532 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 4500 MEMORIAL DR, Belleville, IL 62226-5399
- **Phone:** (618) 233-7750
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Midwest Anesthesia Providers S.C (NPI 1295189082, Saint Louis, MO); Racine Anesthesia Services, LLC (NPI 1467782748, Mount Pleasant, WI); Gulf-To-Bay Anesthesiology Associates LLC (NPI 1982932562, Dade City, FL); Roswell Clinic Corp (NPI 1649267618, Roswell, NM); Unm Medical Group Inc (NPI 1831218627, Albuquerque, NM) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** October 6, 2025
- **Other identifiers:** Medicaid 1760641930 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1760641930) · Data from the CMS NPPES public registry.