Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Diagnostic Radiology

Brent R. Bullis, MD

Works at hospitals in Fairmont, MN · Mankato, MN · Waseca, MN … · Minnesota

Summary

Dr. Brent R. Bullis, MD is a radiologist at 1025 Marsh St, Mankato, MN 56001. Phone: (507) 625-4031. Accepts Medicare assignment. In 2024, Brent R. Bullis had 1,307 Original Medicare patients and 12,031 services. NPI 1831140441. 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 Brent R. Bullis, 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 Brent R. Bullis accept Medicare assignment?
Yes. Medicare's clinician data says Brent R. Bullis 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 Brent R. Bullis see?
In 2024, CMS data shows 1,307 Original Medicare patients and 12,031 services for Brent R. Bullis. This counts Original Medicare only and measures volume, not quality.
What is Brent R. Bullis's NPI number?
1831140441. 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 Brent R. Bullis, 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 patients1,307
Services billed to Medicare12,031
Different services or procedures121
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)9,645 services
  2. Ct scan head or brain without contrast (70450)261 services
  3. Ct scan of abdomen and pelvis with contrast (74177)147 services
  4. Ultrasound study of one arm or leg veins with compression and maneuvers (93971)101 services
  5. 3d radiographic procedure (76376)97 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%
  • Arthritis45%
  • Chronic kidney disease44%
  • Depression33%
  • Anxiety33%

Hospitals where Brent R. Bullis works

Medicare's Facility Affiliation Data lists Brent R. Bullis 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 Brent R. Bullis is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Brent R. Bullis as a member of these groups (CMS data updated October 2, 2026).

  • Mayo Clinic Health System-Southwest Minnesota Region661 clinicians in the group
  • Mayo Clinic Health System-Fairmont155 clinicians in the group
  • Mayo Clinic Health System-St James76 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Minnesota →

Other radiologists in Mankato

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

All radiologists in Mankato →

Other clinicians in Mayo Clinic Health System-Southwest Minnesota Region

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

Clinician information

CredentialMD
Medical schoolUniversity Of Minnesota Medical School
Graduation year1996 (30 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1831140441
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