Dr. Jonathan Hsu is a Professor of Medicine at UC San Diego Health, Section of Electrophysiology, Division of Cardiology.

Dr. Hsu is also a clinical research investigator with formal advanced training (Master’s Degree) in clinical research methods and biostatistics. His research focuses on the epidemiology and clinical outcomes in patients with all types of cardiac arrhythmias and devices, including reducing the risk of stroke in atrial fibrillation patients with oral anticoagulants and left atrial appendage occlusion devices and reducing complications in implantable-cardioverter defibrillator recipients and ablation patients. Dr. Hsu has a special clinical interest in quality of cardiovascular care improvement and outcomes research. He has specific expertise in Registry and large database analyses to improve the medical and procedural care of patients with arrhythmias. He has a special interest in left atrial appendage occlusion for stroke risk reduction in patients with atrial fibrillation. He has co-authored and published >200 journal articles in top cardiology journals.

Dr. Hsu completed fellowship training in general cardiology and received additional advanced sub-specialty training in cardiac electrophysiology at the University of California, San Francisco (UCSF), where he also completed his Master’s Degree in Clinical Research (MAS). He completed both his internship and residency at Massachusetts General Hospital. He earned his undergraduate and medical degree at Northwestern University.