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Anesthesiology

Ilene Lewis, MD

Works at hospitals in Belleville, IL · Albuquerque, NM · Illinois, New Mexico

Summary

Dr. Ilene Lewis, MD is an anesthesiologist at 10 Hospital Dr, Saint Peters, MO 63376. Phone: (636) 916-9000. Accepts Medicare assignment. In 2024, Ilene Lewis had 22 Original Medicare patients and 24 services. NPI 1760641930. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 10 Hospital Dr, Saint Peters, MO 63376 · Directions (3 more locations)
  • Phone: (636) 916‑9000
  • Medicare: Accepts Medicare assignment
  • Hospitals: Memorial Hospital, UNM Hospital
  • Group practice: UNM Medical Group Inc (+1 more)
  • Medical school: graduated 2004 (22 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Ilene Lewis, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Ilene Lewis accept Medicare assignment?
Yes. Medicare's clinician data says Ilene Lewis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Ilene Lewis see?
In 2024, CMS data shows 22 Original Medicare patients and 24 services for Ilene Lewis. This counts Original Medicare only and measures volume, not quality.
What is Ilene Lewis's NPI number?
1760641930. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Ilene Lewis, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients22
Services billed to Medicare24
Different services or procedures20
Participating Medicare providerYes
Average age of these patients73

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure73%
  • High cholesterol68%
  • Arthritis50%

Hospitals where Ilene Lewis works

Medicare's Facility Affiliation Data lists Ilene Lewis at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Memorial HospitalBelleville, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140185
  • UNM HospitalAlbuquerque, NM · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 320001

Practice locations

Addresses where Ilene Lewis is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ilene Lewis as a member of these groups (CMS data updated October 2, 2026).

  • UNM Medical Group Inc1,047 clinicians in the group
  • Midwest Anesthesia Providers SC182 clinicians in the group

Specialties

Find other Anesthesiology doctors in Missouri →

Other anesthesiologists in Saint Peters

Clinicians with the same Medicare primary specialty in Saint Peters, MO — not a recommendation.

All anesthesiologists in Saint Peters →

Other clinicians in UNM Medical Group Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2004 (22 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1760641930
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians