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Emergency Medicine

Russell J. Madsen, MD

Works at hospitals in Tucson, AZ · Arizona

Summary

Dr. Russell J. Madsen, MD is an emergency medicine doctor at 1601 W Saint Marys Rd, Tucson, AZ 85745. Phone: (520) 872-4901. Accepts Medicare assignment. In 2024, Russell J. Madsen had 194 Original Medicare patients and 226 services. NPI 1457351108. 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: 1601 W Saint Marys Rd, Tucson, AZ 85745 · Directions
  • Phone: (520) 872‑4901
  • Medicare: Accepts Medicare assignment
  • Hospital: St. Mary's Hospital
  • Group practice: Cep America-Arizona LLP
  • Medical school: University Of Virginia School Of Medicine · graduated 1979 (47 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Russell J. Madsen, 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 Russell J. Madsen accept Medicare assignment?
Yes. Medicare's clinician data says Russell J. Madsen 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 Russell J. Madsen see?
In 2024, CMS data shows 194 Original Medicare patients and 226 services for Russell J. Madsen. This counts Original Medicare only and measures volume, not quality.
What is Russell J. Madsen's NPI number?
1457351108. 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 Russell J. Madsen, 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 patients194
Services billed to Medicare226
Different services or procedures9
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)120 services
  2. Critical care, first 30-74 minutes (99291)41 services
  3. Emergency department visit with moderate level of medical decision making (99284)36 services
  4. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)19 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%
  • Arthritis49%
  • Ischemic heart disease44%
  • Chronic kidney disease43%
  • Atrial fibrillation40%

Hospitals where Russell J. Madsen works

Medicare's Facility Affiliation Data lists Russell J. Madsen 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.

  • St. Mary's HospitalTucson, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030010

Practice locations

Addresses where Russell J. Madsen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Russell J. Madsen as a member of this group (CMS data updated October 2, 2026).

  • Cep America-Arizona LLP31 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Arizona →

Other emergency medicine doctors in Tucson

Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.

All emergency medicine doctors in Tucson →

Other clinicians in Cep America-Arizona LLP

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

Clinician information

CredentialMD
Medical schoolUniversity Of Virginia School Of Medicine
Graduation year1979 (47 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1457351108
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