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Diagnostic Radiology

Robert J. Mc Donald Jr., MD

Works at hospitals in Rochester, MN · Minnesota

Summary

Dr. Robert J. Mc Donald Jr., MD is a radiologist at 200 1st St SW, Rochester, MN 55905. Phone: (507) 284-2511. Accepts Medicare assignment. In 2024, Robert J. Mc Donald Jr. had 713 Original Medicare patients and 26,054 services. NPI 1184870156. 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: Radiologist (Medicare lists Diagnostic Radiology)
  • Address: 200 1st St SW, Rochester, MN 55905 · Directions
  • Phone: (507) 284‑2511
  • Medicare: Accepts Medicare assignment
  • Hospital: Mayo Clinic Hospital Rochester
  • Group practice: Mayo Clinic
  • Medical school: Mayo Medical School · graduated 2008 (18 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Robert J. Mc Donald Jr., 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 Robert J. Mc Donald Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Robert J. Mc Donald Jr. 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 Robert J. Mc Donald Jr. see?
In 2024, CMS data shows 713 Original Medicare patients and 26,054 services for Robert J. Mc Donald Jr.. This counts Original Medicare only and measures volume, not quality.
What is Robert J. Mc Donald Jr.'s NPI number?
1184870156. 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 Robert J. Mc Donald Jr., 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 patients713
Services billed to Medicare26,054
Different services or procedures49
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Injection, gadobutrol, 0.1 ml (A9585)19,275 services
  2. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)5,800 services
  3. Mri scan of brain before and after contrast (70553)200 services
  4. Ct scan head or brain without contrast (70450)127 services
  5. Mri scan of brain without contrast (70551)59 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 pressure73%
  • High cholesterol71%
  • Arthritis54%
  • Ischemic heart disease34%
  • Chronic kidney disease34%
  • Depression33%

Hospitals where Robert J. Mc Donald Jr. works

Medicare's Facility Affiliation Data lists Robert J. Mc Donald Jr. 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 Robert J. Mc Donald Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Robert J. Mc Donald Jr. as a member of this group (CMS data updated October 2, 2026).

  • Mayo Clinic4,956 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Minnesota →

Other radiologists in Rochester

Clinicians with the same Medicare primary specialty in Rochester, MN — not a recommendation.

All radiologists in Rochester →

Other clinicians in Mayo Clinic

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

Clinician information

CredentialMD
Medical schoolMayo Medical School
Graduation year2008 (18 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1184870156
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