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Pathology

Randall J. Shannon, MD

Works at hospitals in Anaconda, MT · Butte, MT · Ann Arbor, MI · Montana, Michigan

Summary

Dr. Randall J. Shannon, MD is a pathologist at 400 S Clark St, Butte, MT 59701. Phone: (406) 782-7442. Accepts Medicare assignment. In 2024, Randall J. Shannon had 895 Original Medicare patients and 2,183 services. NPI 1043327562. 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 Randall J. Shannon, 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 Randall J. Shannon accept Medicare assignment?
Yes. Medicare's clinician data says Randall J. Shannon 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 Randall J. Shannon see?
In 2024, CMS data shows 895 Original Medicare patients and 2,183 services for Randall J. Shannon. This counts Original Medicare only and measures volume, not quality.
What is Randall J. Shannon's NPI number?
1043327562. 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 Randall J. Shannon, 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 patients895
Services billed to Medicare2,183
Different services or procedures21
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)1,267 services
  2. Special stained specimen slides to examine tissue, each additional procedure (88341)253 services
  3. Cell examination of specimen, concentration technique (88108)182 services
  4. Pathology examination of tissue using a microscope, moderately high complexity (88307)114 services
  5. Pathology examination of tissue using a microscope, moderately low complexity (88304)80 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 pressure65%
  • High cholesterol59%
  • Arthritis39%
  • Diabetes27%
  • Depression24%
  • Anxiety22%

Hospitals where Randall J. Shannon works

Medicare's Facility Affiliation Data lists Randall J. Shannon 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 Randall J. Shannon is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Pathology doctors in Montana →

Other pathologists in Montana

Clinicians with the same Medicare primary specialty in Montana — not a recommendation.

All pathologists in Montana →

Clinician information

CredentialMD
Medical schoolIndiana University School Of Medicine
Graduation year1987 (39 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1043327562
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