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Cardiovascular Disease (Cardiology)

Francis J. Mirecki, MD

Works at hospitals in Norwich, CT · Connecticut

Summary

Dr. Francis J. Mirecki, MD is a cardiologist at 8 Vista Dr, Old Lyme, CT 06371. Phone: (860) 434-4978. Accepts Medicare assignment. In 2024, Francis J. Mirecki had 337 Original Medicare patients and 438 services. NPI 1083667265. 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: 8 Vista Dr, Old Lyme, CT 06371 · Directions
  • Phone: (860) 434‑4978
  • Medicare: Accepts Medicare assignment
  • Hospital: William W Backus Hospital
  • Group practice: Hartford Healthcare Medical Group Specialists PLLC
  • Medical school: Temple University School Of Medicine · graduated 1987 (39 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Francis J. Mirecki, 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 Francis J. Mirecki accept Medicare assignment?
Yes. Medicare's clinician data says Francis J. Mirecki 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 Francis J. Mirecki see?
In 2024, CMS data shows 337 Original Medicare patients and 438 services for Francis J. Mirecki. This counts Original Medicare only and measures volume, not quality.
What is Francis J. Mirecki's NPI number?
1083667265. 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 Francis J. Mirecki, 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 patients337
Services billed to Medicare438
Different services or procedures21
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)224 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)49 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)41 services
  4. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)41 services
  5. Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician (93018)14 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%
  • Arthritis55%
  • Anxiety45%
  • Ischemic heart disease44%
  • Atrial fibrillation44%

Hospitals where Francis J. Mirecki works

Medicare's Facility Affiliation Data lists Francis J. Mirecki 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.

  • William W Backus HospitalNorwich, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070024

Practice locations

Addresses where Francis J. Mirecki is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Francis J. Mirecki as a member of this group (CMS data updated October 2, 2026).

  • Hartford Healthcare Medical Group Specialists PLLC1,588 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Connecticut →

Other cardiologists in Connecticut

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

All cardiologists in Connecticut →

Other clinicians in Hartford Healthcare Medical Group Specialists PLLC

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

Clinician information

CredentialMD
Medical schoolTemple 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)1083667265
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