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Compare the published Medicare service mix of Steven Lloyd Zweibel, MD with clinicians in the same registry specialty: Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) (CMS).

HARTFORD, CT · Exact areaEdit location

2024 published service data · 10 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Meir Friedman, MD

Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) (CMS) · Hartford, CT

Shared published services
3 shared services · view billing descriptions
  • Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days (93295)
  • Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
83%Service-mix similarityView profile →

Aneesh Tolat, M.D.

Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) (CMS) · Hartford, CT

Shared published services
3 shared services · view billing descriptions
  • Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days (93295)
  • Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
78%Service-mix similarityView profile →

Eric M Crespo, M.D.

Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) (CMS) · Hartford, CT

Shared published services
3 shared services · view billing descriptions
  • Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days (93295)
  • Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
78%Service-mix similarityView profile →

Craig Barry Moskowitz, MD

Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) (CMS) · Hartford, CT

Shared published services
3 shared services · view billing descriptions
  • Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days (93295)
  • Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
74%Service-mix similarityView profile →

Joseph Dell'orfano, M.D.

Cardiac Electrophysiology (CMS) · Hartford, CT

Shared published services
3 shared services · view billing descriptions
  • Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days (93295)
  • Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
66%Service-mix similarityView profile →

William Henry Perucki, M.D.

Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) (CMS) · Hartford, CT

Shared published services
3 shared services · view billing descriptions
  • Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Programming of dual lead pacemaker system (93280)
55%Service-mix similarityView profile →

Jeffrey Kluger, M.D.

Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) (CMS) · Hartford, CT

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Programming of dual lead pacemaker system (93280)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
54%Service-mix similarityView profile →

Patrick M O'beirne, M.D.

Cardiovascular Disease (Cardiology) (CMS) · Hartford, CT

Shared published services
3 shared services · view billing descriptions
  • Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Programming of dual lead pacemaker system (93280)
50%Service-mix similarityView profile →

Neal Lippman, M.D.

Cardiac Electrophysiology (CMS) · Hartford, CT

Shared published services
3 shared services · view billing descriptions
  • Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days (93295)
  • Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)
  • Programming of dual lead pacemaker system (93280)
47%Service-mix similarityView profile →

Ellison Berns, M.D.

Cardiac Electrophysiology · Cardiovascular Disease (Cardiology) (CMS) · Hartford, CT

Shared published services
3 shared services · view billing descriptions
  • Programming of dual lead pacemaker system (93280)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
34%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.