Photo of Leon M. Ptaszek, MD, PhD

Leon M. Ptaszek, MD, PhD


Accepting New Patients





Centers & Specialties

Heart Center

Clinical Interests
  • Treatment of cardiac arrhythmias
  • Catheter ablation of supraventricular tachycardias
  • Pacemaker therapy
  • Implanted cardioverter defibrillator (ICD) therapy
  • Cardiac resynchronization therapy
Medical Education
  • MD, PhD, Mount Sinai School of Medicine
  • Residency, Stanford University Medical Center
  • Fellowship, Massachusetts General Hospital
Board Certifications
  • Internal Medicine
  • Cardiovascular Disease
  • Clinical Cardiac Electrophysiology
  • Boston: Massachusetts General Hospital
Insurances Accepted
  • Aetna Health Inc.
  • Beech Street
  • Blue Cross Blue Shield - Blue Care 65
  • Blue Cross Blue Shield - Indemnity
  • Blue Cross Blue Shield - Managed Care
  • Blue Cross Blue Shield - Partners Plus
  • Cigna (PAL #'s)
  • Fallon Community HealthCare
  • Great-West Healthcare (formally One Health Plan)
  • Harvard Pilgrim Health Plan - ACD
  • Harvard Pilgrim Health Plan - PBO
  • Health Care Value Management (HCVM)
  • Humana/Choice Care PPO
  • MassHealth
  • Medicare
  • Medicare - ACD
  • Neighborhood Health Plan - ACD
  • Neighborhood Health Plan - PBO
  • OSW - Connecticut
  • OSW - Maine
  • OSW - New Hampshire
  • OSW - Rhode Island
  • Private Health Care Systems (PHCS)
  • Railroad Medicare
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Unicare
  • United Healthcare (non-HMO) - ACD
  • United Healthcare (non-HMO) - PBO

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.

Patient Age Group


Dr. Ptaszek received his M.D. and Ph.D. degrees at the Mount Sinai School of Medicine.  He completed his residency training at the Stanford University School of Medicine.  After the completion of his residency training, Dr. Ptaszek completed fellowships in cardiology and clinical cardiac electrophysiology at the Massachusetts General Hospital.  He is board certified in internal medicine, cardiovascular diseases, and clinical cardiac electrophysiology.  Dr. Ptaszek is currently an Assistant Professor of Medicine at Harvard Medical School and MGH.  His practice is currently accepting new patients.

Research & Publications


View my most recent publications at PubMed


Electrophysiology Lab/Arrhythmia Service
55 Fruit Street
Boston, MA 02114-2696
Phone 1: 617-643-4017
Phone 2: 617-726-9292
Fax: 617-724-6747

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