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Cardiovascular Disease (Cardiology)

Vennaralagappan Mahadev, MD

Sees patients in Iron Mountain, MI · Michigan

Summary

Dr. Vennaralagappan Mahadev, MD is a cardiologist at 1721 S Stephenson Ave, Iron Mountain, MI 49801. Phone: (906) 774-1313. Accepts Medicare assignment. In 2024, Vennaralagappan Mahadev had 396 Original Medicare patients and 605 services. NPI 1720076581. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Cardiologist (Medicare lists Cardiovascular Disease (Cardiology))
  • Address: 1721 S Stephenson Ave, Iron Mountain, MI 49801 · Directions
  • Phone: (906) 774‑1313
  • Medicare: Accepts Medicare assignment
  • Group practice: Dickinson County Healthcare System
  • Medical school: graduated 1967 (59 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Vennaralagappan Mahadev, 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 Vennaralagappan Mahadev accept Medicare assignment?
Yes. Medicare's clinician data says Vennaralagappan Mahadev 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 Vennaralagappan Mahadev see?
In 2024, CMS data shows 396 Original Medicare patients and 605 services for Vennaralagappan Mahadev. This counts Original Medicare only and measures volume, not quality.
What is Vennaralagappan Mahadev's NPI number?
1720076581. 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 Vennaralagappan Mahadev, 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 patients396
Services billed to Medicare605
Different services or procedures8
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)251 services
  2. Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician (93018)83 services
  3. Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician (93016)81 services
  4. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)79 services
  5. Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)61 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%
  • Arthritis54%
  • Ischemic heart disease48%
  • Heart failure38%
  • Chronic kidney disease34%

Practice locations

Addresses where Vennaralagappan Mahadev is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Vennaralagappan Mahadev as a member of this group (CMS data updated October 2, 2026).

  • Dickinson County Healthcare System101 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Michigan →

Other cardiologists in Iron Mountain

Clinicians with the same Medicare primary specialty in Iron Mountain, MI — not a recommendation.

All cardiologists in Iron Mountain →

Other clinicians in Dickinson County Healthcare System

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

Clinician information

CredentialMD
Graduation year1967 (59 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1720076581
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians