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Diagnostic Radiology

Donald L. Renfrew, MD

Works at hospitals in Columbus, WI · Baraboo, WI · Madison, WI … · Wisconsin

Summary

Dr. Donald L. Renfrew, MD is a radiologist at 1211 Fish Hatchery Rd, Madison, WI 53715. Phone: (608) 252-8000. Accepts Medicare assignment. In 2024, Donald L. Renfrew had 1,228 Original Medicare patients and 2,002 services. NPI 1801872767. 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 Donald L. Renfrew, 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 Donald L. Renfrew accept Medicare assignment?
Yes. Medicare's clinician data says Donald L. Renfrew 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 Donald L. Renfrew see?
In 2024, CMS data shows 1,228 Original Medicare patients and 2,002 services for Donald L. Renfrew. This counts Original Medicare only and measures volume, not quality.
What is Donald L. Renfrew's NPI number?
1801872767. 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 Donald L. Renfrew, 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 patients1,228
Services billed to Medicare2,002
Different services or procedures120
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Dxa bone density measurement of hip, pelvis, spine (77080)227 services
  2. X-ray of chest, 2 views (71046)145 services
  3. X-ray of knee, 3 views (73562)134 services
  4. X-ray of hip, 2-3 views (73502)107 services
  5. X-ray of foot, minimum of 3 views (73630)103 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 pressure70%
  • High cholesterol70%
  • Arthritis64%
  • Ischemic heart disease22%
  • Anxiety22%
  • Diabetes21%

Hospitals where Donald L. Renfrew works

Medicare's Facility Affiliation Data lists Donald L. Renfrew 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.

  • Columbus Community HospitalColumbus, WI · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 521338
  • SSM Health St Clare Hospital - BarabooBaraboo, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520057
  • SSM Health St Mary's Hospital - MadisonMadison, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520083
  • Stoughton HospitalStoughton, WI · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 521343
  • The Monroe ClinicMonroe, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520028

Practice locations

Addresses where Donald L. Renfrew is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Donald L. Renfrew as a member of these groups (CMS data updated October 2, 2026).

  • Dean Health Systems Inc1,159 clinicians in the group
  • Madison Radiologists S C57 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 Dean Health Systems Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Iowa, Rj & L Carver College Of Medicine
Graduation year1982 (44 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1801872767
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