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Heart Rhythm (Arrhythmias)

Legacy offers complete and compassionate heart rhythm services. Using the latest technology, our expert staff provides evaluation, diagnosis and treatment for both fast and slow heart rhythm problems. Our advanced electrophysiology labs provide evaluation and treatment to get you back to living your life.

Our specialized staff includes a team of electrophysiologists (cardiologists trained specifically to care for heart rhythm patients), arrhythmia clinical nurse specialists and electrophysiology technologists. 

What is arrhythmia?

An arrhythmia is a change in the rate of your heartbeat. An abnormality in your heart’s electrical system can cause arrhythmia. You can be born with abnormal heart rhythm or you can develop it later in life. Arrhythmia conditions can include:

  • Atrial fibrillation - click here for more information about Afib
  • Atrial flutter
  • Bradycardia
  • Heart failure or cardiomyopathy
  • Supraventricular tachycardia
  • Syncope 
  • Ventricular fibrillation
  • Ventricular tachycardia


All Legacy hospitals provide heart rhythm services. Legacy Good Samaritan Medical Center serves as the leading hospital, offering a heart rhythm clinic and physician partners who specialize in arrhythmias from Northwest Cardiovascular Institute and Pacific Heart Associates. Legacy also offers heart rhythm services for children.

We specialize in the following heart rhythm services:

  • Evaluation and diagnosis
  • Atrioventricular (AV) node ablation
  • Cardioversion
  • Catheter ablation
  • Electrophysiology studies (EPS)
  • Implantation and follow-up of cardiac devices
    • Pacemakers
    • Defibrillators
    • Cardiac resynchronization therapy (CRT)
    • Implantable loop recorders
    • Lead removal/extraction
  • Sophisticated mapping systems
  • Surgical Maze procedure
  • Tilt table testing

Our locations

Legacy Medical Group—Cardiology
Medical Office Building 2, Suite 660
1040 N.W. 22nd
Portland, OR 97210
Phone: 503-413-7162
Fax: 503-413-7148

Legacy Medical Group—Cardiology
Medical Office Building 2, Suite 200
501 N. Graham, Suite
Portland, OR 97227
Phone:  503-413-7162
Fax:  503-413-4711

Our providers

Our team of physicians includes:

Jack Kron, M.D. — cardiologist, cardiac eletrophysiologist

John McAnulty, M.D. — Director of Legacy Heart Rhythm Services, cardiologist and cardiac electrophysiologist

Eric Putz, M.D. — cardiologist, cardiac electrophysiologist 

Erin Bugna, R.N., BSN — arrhythmia clinical specialist

Joy Khamsoukthavong, M.S., R.N., CNS — arrhythmia clinical nurse specialist

Partner physician practice:

Northwest Cardiovascular Institute
Brian Moyers, M.D. — cardiologist, cardiac eletrophysiologist