Dr. Marshall Marcus, MD is a cardiac electrophysiologist (EP) who is board-certified in cardiovascular diseases and internal medicine by the American Board of Internal Medicine (ABIM) in St. Petersburg, Florida. He trained to performed complex catheter ablation for cardiac arrhythmias, pacemaker implantation, defibrillator implantation, and laser lead extraction under the mentorship of Dr. Laurence Epstein, a world-renowned pioneer in lead extraction. He speaks Spanish, Hebrew and Italian.