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Emergency Medicine

Andrew L. Aswegan, MD

Works at hospitals in Elkhorn, WI · Burlington, WI · Wisconsin

Summary

Dr. Andrew L. Aswegan, MD is an emergency medicine doctor at W3985 County Rd Nn, Elkhorn, WI 53121. Phone: (262) 741-2000. Accepts Medicare assignment. In 2024, Andrew L. Aswegan had 187 Original Medicare patients and 214 services. NPI 1548227812. 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 Andrew L. Aswegan, 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 Andrew L. Aswegan accept Medicare assignment?
Yes. Medicare's clinician data says Andrew L. Aswegan 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 Andrew L. Aswegan see?
In 2024, CMS data shows 187 Original Medicare patients and 214 services for Andrew L. Aswegan. This counts Original Medicare only and measures volume, not quality.
What is Andrew L. Aswegan's NPI number?
1548227812. 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 Andrew L. Aswegan, 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 patients187
Services billed to Medicare214
Different services or procedures17
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Emergency department visit with moderate level of medical decision making (99284)73 services
  2. Emergency department visit with high level of medical decision making (99285)54 services
  3. Emergency department visit with low level of medical decision making (99283)46 services
  4. Critical care, first 30-74 minutes (99291)24 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%
  • Arthritis63%
  • Chronic kidney disease42%
  • Ischemic heart disease38%
  • Heart failure37%

Hospitals where Andrew L. Aswegan works

Medicare's Facility Affiliation Data lists Andrew L. Aswegan 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 Andrew L. Aswegan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Andrew L. Aswegan as a member of this group (CMS data updated October 2, 2026).

  • Aurora Medical Group, Inc.3,813 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Wisconsin →

Other emergency medicine doctors in Elkhorn

Clinicians with the same Medicare primary specialty in Elkhorn, WI — not a recommendation.

All emergency medicine doctors in Elkhorn →

Other clinicians in Aurora Medical Group, Inc.

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

Clinician information

CredentialMD
Graduation year2005 (21 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1548227812
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