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Anesthesiology

Anna M. Stegemann, DO

Works at hospitals in Libertyville, IL · Evanston, IL · Illinois

Summary

Dr. Anna M. Stegemann, DO is an anesthesiologist at 801 S Milwaukee Ave, Libertyville, IL 60048. Phone: (847) 279-0061. Accepts Medicare assignment. In 2024, Anna M. Stegemann had 243 Original Medicare patients and 280 services. NPI 1003089707. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Anna M. Stegemann, 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 Anna M. Stegemann accept Medicare assignment?
Yes. Medicare's clinician data says Anna M. Stegemann 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 Anna M. Stegemann see?
In 2024, CMS data shows 243 Original Medicare patients and 280 services for Anna M. Stegemann. This counts Original Medicare only and measures volume, not quality.
What is Anna M. Stegemann's NPI number?
1003089707. 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 Anna M. Stegemann, 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 patients243
Services billed to Medicare280
Different services or procedures58
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Anesthesia for lens surgery (00142)60 services
  2. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)19 services
  3. Insertion of artery tube for blood sampling or infusion through skin (36620)18 services
  4. Anesthesia for other procedure on lower spine (00630)14 services
  5. Anesthesia for x-ray on artery of brain, heart, or chest (01926)13 services

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 pressure75%
  • High cholesterol75%
  • Arthritis62%
  • Diabetes41%
  • Chronic kidney disease39%
  • Ischemic heart disease35%

Hospitals where Anna M. Stegemann works

Medicare's Facility Affiliation Data lists Anna M. Stegemann 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.

Practice locations

Addresses where Anna M. Stegemann is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Anna M. Stegemann as a member of this group (CMS data updated October 2, 2026).

  • Advocate Health and Hospitals Corporation3,118 clinicians in the group

Specialties

Find other Anesthesiology doctors in Illinois →

Other anesthesiologists in Libertyville

Clinicians with the same Medicare primary specialty in Libertyville, IL — not a recommendation.

All anesthesiologists in Libertyville →

Other clinicians in Advocate Health and Hospitals Corporation

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

Clinician information

CredentialDO
Medical schoolAt Still University Of Health Sciences, College Of Osteo Med, Kirksville
Graduation year2004 (22 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1003089707
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