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Cardiovascular Disease (Cardiology)

Alexandru A. Stoian, MD

Works at hospitals in Potsdam, NY · Massena, NY · New York

Summary

Dr. Alexandru A. Stoian, MD is a cardiologist at 49 Lawrence Ave, Potsdam, NY 13676. Phone: (315) 261-5550. Accepts Medicare assignment. In 2024, Alexandru A. Stoian had 519 Original Medicare patients and 696 services. NPI 1538136114. 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: Cardiologist (Medicare lists Cardiovascular Disease (Cardiology))
  • Address: 49 Lawrence Ave, Potsdam, NY 13676 · Directions (1 more location)
  • Phone: (315) 261‑5550
  • Medicare: Accepts Medicare assignment
  • Hospitals: Canton-Potsdam Hospital, SLHS Massena, Inc
  • Group practice: Canton-Potsdam Hospital
  • Medical school: graduated 1977 (49 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Alexandru A. Stoian, 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 Alexandru A. Stoian accept Medicare assignment?
Yes. Medicare's clinician data says Alexandru A. Stoian 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 Alexandru A. Stoian see?
In 2024, CMS data shows 519 Original Medicare patients and 696 services for Alexandru A. Stoian. This counts Original Medicare only and measures volume, not quality.
What is Alexandru A. Stoian's NPI number?
1538136114. 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 Alexandru A. Stoian, 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 patients519
Services billed to Medicare696
Different services or procedures12
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)165 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)153 services
  3. Nuclear medicine studies of heart muscle at rest and with stress and spect (78452)131 services
  4. Heart rhythm review and interpretation of continous external ekg over 8-15 days (93248)61 services
  5. Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician (93018)57 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%
  • Arthritis45%
  • Ischemic heart disease42%
  • Diabetes40%
  • COPD33%

Hospitals where Alexandru A. Stoian works

Medicare's Facility Affiliation Data lists Alexandru A. Stoian 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.

  • Canton-Potsdam HospitalPotsdam, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330197
  • SLHS Massena, IncMassena, NY · Critical Access Hospital · Emergency services: listed by Medicare · CCN 331322

Practice locations

Addresses where Alexandru A. Stoian is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Alexandru A. Stoian as a member of this group (CMS data updated October 2, 2026).

  • Canton-Potsdam Hospital252 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in New York →

Other cardiologists in New York

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

All cardiologists in New York →

Other clinicians in Canton-Potsdam Hospital

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

Clinician information

CredentialMD
Graduation year1977 (49 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538136114
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