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Cardiovascular Disease (Cardiology)

Steven M. Borer, DO

Works at hospitals in Hartford, CT · Middletown, CT · Meriden, CT · Connecticut

Summary

Dr. Steven M. Borer, DO is a cardiologist at 100 Retreat Ave, Suite 705, Hartford, CT 06106. Phone: (860) 278-0070. Accepts Medicare assignment. In 2024, Steven M. Borer had 1,275 Original Medicare patients and 2,527 services. NPI 1528210119. 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: 100 Retreat Ave, Suite 705, Hartford, CT 06106 · Directions (1 more location)
  • Phone: (860) 278‑0070
  • Medicare: Accepts Medicare assignment
  • Hospitals: Hartford Hospital, Middlesex Hospital, Midstate Medical Center
  • Group practice: Hartford Healthcare Medical Group Specialists PLLC
  • Medical school: Rutgers School Of Dental Medicine · graduated 2003 (23 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Steven M. Borer, 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 Steven M. Borer accept Medicare assignment?
Yes. Medicare's clinician data says Steven M. Borer 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 Steven M. Borer see?
In 2024, CMS data shows 1,275 Original Medicare patients and 2,527 services for Steven M. Borer. This counts Original Medicare only and measures volume, not quality.
What is Steven M. Borer's NPI number?
1528210119. 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 Steven M. Borer, 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 patients1,275
Services billed to Medicare2,527
Different services or procedures40
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)808 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)486 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)438 services
  4. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)112 services
  5. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)112 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%
  • Ischemic heart disease56%
  • Arthritis50%
  • Atrial fibrillation42%
  • Chronic kidney disease40%

Hospitals where Steven M. Borer works

Medicare's Facility Affiliation Data lists Steven M. Borer 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.

  • Hartford HospitalHartford, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070025
  • Middlesex HospitalMiddletown, CT · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 070020
  • Midstate Medical CenterMeriden, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070017

Practice locations

Addresses where Steven M. Borer is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Steven M. Borer 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 Hartford

Clinicians with the same Medicare primary specialty in Hartford, CT — not a recommendation.

All cardiologists in Hartford →

Other clinicians in Hartford Healthcare Medical Group Specialists PLLC

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

Clinician information

CredentialDO
Medical schoolRutgers School Of Dental Medicine
Graduation year2003 (23 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1528210119
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