Greg Marcus

Cardiac Electrophysiologist, Professor of Medicine, clinical investigator and Associate Chief of Cardiology for Research at UCSF

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Greg Marcus is Professor of Medicine at the University of California, San Francisco (UCSF), Associate Chief of Cardiology for Research at UCSF Health, and the inaugural Endowed Professor of Atrial Fibrillation Research. In addition to engaging in an active clinical practice dedicated to the diagnosis and treatment of arrhythmias, including caring for patients in the clinic and hospital, performing catheter ablation procedures and implantations of pacemakers and defibrillators, and training cardiology electrophysiology fellows, Dr. Marcus has an active research program. His research is dedicated to understanding the fundamental causes of abnormal heart rhythms, identifying optimal therapeutic approaches for those arrhythmias, understanding the overall health effects of common exposures such as caffeine, alcohol, tobacco smoke, and cannabis, and using technology and wearable sensors to enhance health and the efficiency of patient-oriented research. He is one of the founders and continues to serve as one of the Principal Investigators of the world-wide, internet-based, Health eHeart Study as well as the NIH-funded national infrastructure to facilitate mobile health, called Eureka. He also runs several ongoing single-center and multi-center randomized, prospective trials, and oversees a team of investigators including post-doctoral fellows, clinical research coordinators, statisticians, and data analysts. With the onset of the novel corona virus epidemic, Dr. Marcus and his colleagues leveraged their Eureka mHealth research platform to rapidly launch the COVID-10 Citizen Science Project, a mobile app-based, longitudinal, research study open to any adult with a smartphone designed to better understand and therefore combat the disease. A graduate of UC, San Diego as a Philosophy major, he attended medical school at George Washington University. He then went on to complete his internship, residency, and served as Chief Medical Resident at Stanford. Subsequently, he completed his general cardiology and cardiac electrophysiology fellowships at UCSF. As part of an NIH-funded career development award, he then completed a Masters in Advanced Studies in Clinical Research at UCSF.

Ask me about
clinical research
Cardiac Electrophysiology
Atrial Fibrillation
supraventricular tachycardias
ventricular arrhythmias
biventricular device
defibrillator implantation

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