1. Minnesota


  1. Cardiovascular Diseases


  1. Fellow - Cardiology Stanford University Medical Center
  2. Resident - Medicine Stanford University Medical Center
  3. Internship - Medicine Stanford University Medical Center
  4. MD Harvard Medical School
  5. PhD - Biochemistry Harvard University
  6. BS - Biology Massachusetts Institute of Technology


  1. Cardiovascular Diseases, American Board of Internal Medicine
  2. Clinical Cardiac Electrophysiology, American Board of Internal Medicine

Academic rank

  1. Professor of Medicine

Professional Highlights

  • Editorial Board, American Journal of Physiology: Heart and Circulatory Physiology 2000-2006
  • Co-Chair 2007, Chair 2008, American Heart Association, Cardiac Electrophysiology and Arrhythmias/Regulation Peer Review Study Group
  • Fellowship Subcommittee, Heart Rhythm Society 2008-2012
  • Chartered Member, National Institute of Health, Electrical Signaling, Ion Transport and Arrhythmia Study Section 2008-2012
  • Distinguished Scientist Lecture, Center for Cardiovascular Sciences, Albany Medical College
  • Research Director, Heart Rhythm Section, Mayo Clinic 2011-
  • Peer Review Committee, American Heart Association, Cardiac Electrophysiology 2
  • National Institute of Health R01 awards 2000-2018
  • Mentor to Recipients of American Heart Association National Scientist Development Award 2006-2009; American Diabetes Association Junior Faculty Award 2007-2010; American Diabetes Association Basic Science Award 2012-2014


  • Autoimmune mechanisms in cardiovascular diseases
  • Autonomic modulation of ion channels and cardiac arrhythmias
  • Cardiac device extraction and outcome
  • Endothelium-derived hyperpolarizing factors
  • Innovative approaches in atrial fibrillation research
  • Ionic mechanisms in shear stress-mediated dilation of microvessels
  • Membrane microdomain targeting of ion channels and signaling pathways
  • Novel approaches in cardiac electronic devices
  • Novel mechanisms of cardiac arrhythmias
  • Regulation of ion channels in the cardiovascular system
  • Regulation of vascular BK channels in diabetes
  • Role of vascular endothelial function in cardiac arrhythmias


See my publications


See a description of research activities.