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Diagnostic Radiology

Troy N. Tenbrunsel, MD

Works at hospitals in Fort Atkinson, WI · Mauston, WI · Richland Center, WI … · Wisconsin

Summary

Dr. Troy N. Tenbrunsel, MD is a radiologist at 1705 Hoffman St, Madison, WI 53704. Phone: (608) 441-3220. Accepts Medicare assignment. In 2024, Troy N. Tenbrunsel had 259 Original Medicare patients and 374 services. NPI 1013478635. 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 Troy N. Tenbrunsel, 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 Troy N. Tenbrunsel accept Medicare assignment?
Yes. Medicare's clinician data says Troy N. Tenbrunsel 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 Troy N. Tenbrunsel see?
In 2024, CMS data shows 259 Original Medicare patients and 374 services for Troy N. Tenbrunsel. This counts Original Medicare only and measures volume, not quality.
What is Troy N. Tenbrunsel's NPI number?
1013478635. 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 Troy N. Tenbrunsel, 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 patients259
Services billed to Medicare374
Different services or procedures57
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Ct scan of abdomen and pelvis with contrast (74177)62 services
  2. X-ray of chest, 1 view (71045)61 services
  3. X-ray of abdomen, 1 view (74018)49 services
  4. Ct scan head or brain without contrast (70450)22 services
  5. X-ray of abdomen, 2 views (74019)12 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 cholesterol68%
  • Arthritis42%
  • Diabetes39%
  • Ischemic heart disease38%
  • Chronic kidney disease37%

Hospitals where Troy N. Tenbrunsel works

Medicare's Facility Affiliation Data lists Troy N. Tenbrunsel 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.

  • Fort Memorial HospitalFort Atkinson, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520071
  • Mile Bluff Medical CenterMauston, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520109
  • Richland HospitalRichland Center, WI · Critical Access Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 521341
  • UnityPoint Health - MeriterMadison, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520089
  • University of WI Hospitals & Clinics AuthorityMadison, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520098

Practice locations

Addresses where Troy N. Tenbrunsel is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.

Group practices

Medicare enrollment lists Troy N. Tenbrunsel as a member of these groups (CMS data updated October 2, 2026).

  • University of Wisconsin Medical Foundation Inc2,553 clinicians in the group
  • Group Health Cooperative of South Central Wisconsin236 clinicians in the group
  • Fort Healthcare Inc155 clinicians in the group
  • University of Wisconsin System Non Payroll109 clinicians in the group
  • Richland Hospital69 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Wisconsin →

Other radiologists in Madison

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

All radiologists in Madison →

Other clinicians in University of Wisconsin Medical Foundation Inc

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

Clinician information

CredentialMD
Medical schoolWayne State University School Of Medicine
Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1013478635
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