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Cardiac Electrophysiology

Alrich L. Gray, MD

Works at hospitals in Great Falls, MT · Shelby, MT · Havre, MT … · Montana

Summary

Dr. Alrich L. Gray, MD is a cardiac electrophysiologist at 401 15th Ave S, Suite 202, Great Falls, MT 59405. Phone: (406) 952-1188. Accepts Medicare assignment. In 2024, Alrich L. Gray had 1,193 Original Medicare patients and 6,251 services. NPI 1952372294. 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 Alrich L. Gray, 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 Alrich L. Gray accept Medicare assignment?
Yes. Medicare's clinician data says Alrich L. Gray 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 Alrich L. Gray see?
In 2024, CMS data shows 1,193 Original Medicare patients and 6,251 services for Alrich L. Gray. This counts Original Medicare only and measures volume, not quality.
What is Alrich L. Gray's NPI number?
1952372294. 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 Alrich L. Gray, 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 patients1,193
Services billed to Medicare6,251
Different services or procedures89
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)1,389 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)888 services
  3. Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days (93296)673 services
  4. Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)548 services
  5. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)365 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 cholesterol75%
  • Atrial fibrillation55%
  • Arthritis48%
  • Ischemic heart disease43%
  • Heart failure31%

Hospitals where Alrich L. Gray works

Medicare's Facility Affiliation Data lists Alrich L. Gray 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 Alrich L. Gray is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Alrich L. Gray as a member of this group (CMS data updated October 2, 2026).

  • Central Montana Heart and Vascular Institute LLC3 clinicians in the group

Specialties

Find other Cardiac Electrophysiology doctors in Montana →

Other cardiac electrophysiologists in Montana

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

All cardiac electrophysiologists in Montana →

Other clinicians in Central Montana Heart and Vascular Institute LLC

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

Clinician information

CredentialMD
Medical schoolHoward University College Of Medicine
Graduation year2003 (23 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1952372294
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