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Emergency Medicine

Valerian M. Peterson, MD

Works at hospitals in Elkhorn, WI · Wisconsin

Summary

Dr. Valerian M. Peterson, MD is an emergency medicine doctor at W3985 County Rd Nn, Elkhorn, WI 53121. Phone: (262) 741-2000. Accepts Medicare assignment. In 2024, Valerian M. Peterson had 314 Original Medicare patients and 469 services. NPI 1245760198. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: W3985 County Rd Nn, Elkhorn, WI 53121 · Directions
  • Phone: (262) 741‑2000
  • Medicare: Accepts Medicare assignment
  • Hospital: Aurora Lakeland Medical Center
  • Group practice: Aurora Medical Group, Inc.
  • Medical school: Creighton University School Of Medicine · graduated 2017 (9 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Valerian M. Peterson, 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 Valerian M. Peterson accept Medicare assignment?
Yes. Medicare's clinician data says Valerian M. Peterson 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 Valerian M. Peterson see?
In 2024, CMS data shows 314 Original Medicare patients and 469 services for Valerian M. Peterson. This counts Original Medicare only and measures volume, not quality.
What is Valerian M. Peterson's NPI number?
1245760198. 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 Valerian M. Peterson, 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 patients314
Services billed to Medicare469
Different services or procedures21
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)146 services
  2. Emergency department visit with moderate level of medical decision making (99284)134 services
  3. Emergency department visit with high level of medical decision making (99285)111 services
  4. Emergency department visit with low level of medical decision making (99283)32 services
  5. Critical care, first 30-74 minutes (99291)25 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%
  • Arthritis53%
  • Ischemic heart disease41%
  • Chronic kidney disease39%
  • Diabetes37%

Hospitals where Valerian M. Peterson works

Medicare's Facility Affiliation Data lists Valerian M. Peterson 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.

  • Aurora Lakeland Medical CenterElkhorn, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520102

Practice locations

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

Group practices

Medicare enrollment lists Valerian M. Peterson 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
Medical schoolCreighton University School Of Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1245760198
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