Dr. Hugh Calkins is the Catherine Ellen Poindexter Professor of Cardiology and Director of the Electrophysiology Laboratory and Arrhythmia Service at the Johns Hopkins Hospital. He is an internationally recognized expert on catheter ablation, atrial fibrillation, syncope, arrhythmogenic right ventricular dysplasia (ARVD) and arrhythmia management. Dr. Calkins attended Williams College and Harvard Medical School before training in medicine at Massachusetts General Hospital. He received his cardiology training at Johns Hopkins. His first faculty position was at the University of Michigan, where he directed the Pacemaker Service, and he returned to Johns Hopkins as director of the Arrhythmia Service in 1992. Dr. Calkins is an Associate Editor of the Journal of Cardiovascular Electrophysiology and is on the editorial board of many other cardiology journals. He is a former member of the American Board of Internal Medicine Electrophysiology Boards Test Writing Committee. Dr. Calkins is a fellow of the American College of Cardiology, the American Heart Association and the Heart Rhythm Society. He led a 44-member international task force whose 2012 Expert Consensus Statement gave recommendations for treatment and research of atrial fibrillation. Dr Calkins is a past president of the Heart Rhythm Society and was elected to be a member of the Miler Coulsen Academy of Clinical Excellence in 2014. Dr. Calkins has published more than 500 articles and book chapters on a large variety of cardiac arrhythmias. His research has focused predominantly on catheter ablation, atrial fibrillation, syncope, and arrhythmogenic right ventricular dysplasia. Dr. Calkins has also written extensively on most aspects of heart rhythm disorders and their treatment. Dr. Calkins is rated as an Elite provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Cardiomyopathy, Cardiac Ablation, and Heart Transplant.

Degrees: BS: Massachusetts Institute of Technology 1981 Electrical Engineering MS: Massachusetts Institute of Technology 1983 Electrical Engineering PhD: Massachusetts Institute of Technology 1987 Electrical Engineering MD: Harvard 1987 Medicine Professional Appointments: 1987-1988 Intern in Medicine, Brigham and Women's Hospital 1988-1990 Resident in Medicine, Brigham and Women's Hospital 1988-1990 Research Scientist, Harvard M.I.T. Division of H.S.T. 1990-1993 Fellow in Cardiology, Johns Hopkins University 1993-1998 Assistant Professor of Medicine, Johns Hopkins University 1996- Co-Director of Cardiac Electrophysiology, Johns Hopkins Hospital 1998-2005 Associate Professor of Medicine, Johns Hopkins University 2002-2005 Associate Professor of Biomedical Engineering, Johns Hopkins University 2005- Professor of Medicine, Johns Hopkins University 2005- Professor of Biomedical Engineering, Johns Hopkins University. Dr. Berger is rated as an Elite provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Ventricular Tachycardia, Cardiac Ablation, and Pacemaker Implantation.

Bassim Badro is a Cardiologist in Glen Burnie,, Maryland. Dr. Badro is rated as a Distinguished provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Cardiomyopathy, Arrhythmias, Dilated Cardiomyopathy (DCM), Heart Failure, and Pacemaker Implantation.

Stephen Shorofsky is a Cardiac Electrophysiologist and a Cardiologist in Baltimore, Maryland. Dr. Shorofsky is rated as an Elite provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Arrhythmias, Ventricular Tachycardia, Paroxysmal Supraventricular Tachycardia (PSVT), Cardiac Ablation, and Pacemaker Implantation. Dr. Shorofsky is currently accepting new patients.

Joseph Marine, MD, MBA, FACC, FHRS, is a clinical cardiac electrophysiologist who practices primarily at the Johns Hopkins Hospital in Baltimore, Maryland. He is a Professor of Medicine at the Johns Hopkins University School of Medicine and holds appointments as Vice-Director of Operations for the Division of Cardiology and Section Chief of Cardiology for Johns Hopkins Community Physicians. He trained at UC San Francisco Medical School, Brigham and Women’s Hospital/Harvard Medical School, Boston University Medical Center, and Beth Israel Deaconess Medical Center. Dr. Marine has lectured widely on a variety of arrhythmia topics and has served as a co-director of the American College of Cardiology (ACC) Cardiovascular Overview and Board Review Course for 10 years. He currently serves on the ACC Board of Governors and is co-editor of the ACC/HRS EP Self-Assessment Program. He also serves on other committees for the ACC, the Heart Rhythm Society, and MedChi. He is co-author of more than 130 original research and review articles and has served on writing committees for several national cardiology practice and training guidelines. As a clinical cardiac electrophysiologist, Dr. Marine specializes in the diagnosis and treatment of arrhythmias, which are heart rhythm disorders that cause the heart to beat too rapidly, too slowly, or irregularly. His research focuses on further improving the safety and effectiveness of catheter ablation and other treatments for atrial fibrillation and other atrial and ventricular arrhythmias. Dr. Marine is rated as a Distinguished provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Atrial Fibrillation, Atrioventricular Nodal Reentrant Tachycardia (AVNRT), Arrhythmias, Cardiac Ablation, and Heart Transplant.

Dr Halperin received the B.S degree in physics with highest distinction from Purdue University, the M.A. degree in physics from the University of California, Berkeley, and the M.D. degree from Louisiana State University, New Orleans, Louisiana. He is a member of Phi Beta Kappa, an Established Investigator and Fellow of the American Heart Association, and a McClure Fellow of the Johns Hopkins University Applied Physics laboratory. Dr. Halperin is currently a Professor of Medicine, Radiology and Biomedical Engineering at the Johns Hopkins Medical Institutions. He is the co-director of the Cardiovascular Imaging Center of Excellence. He serves on the editorial board of the journal Resuscitation, and is a past chair of the national American Heart Association Advanced Cardiovascular Life Support Subcommittee and a past member of the Emergency Cardiac Care Committee. Ten of his students have received young investigator awards from the American Heart Association and Heart Rhythm Society, and he has ongoing support from the National Institutes of Heath for his research programs. He has over 120 peer-reviewed publications and over 20 patents issued. Dr. Halperin is rated as a Distinguished provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Ventricular Fibrillation, Heart Attack, Ventricular Tachycardia, Cardiac Ablation, and Lithotripsy.

Dr. Allison Hays is a general cardiologist and Medical Director of Echocardiography Programs at the Johns Hopkins Hospital. She is also an assistant professor at the Johns Hopkins University School of Medicine. Dr. Hays graduated from Stanford University with degrees in biology and English. She received her medical training at the Columbia University College of Physicians and Surgeons and did her residency at the New York Presbyterian Hospital at Columbia. Dr. Hays pursued cardiology fellowships at New York University Medical Center and at the Johns Hopkins University School of Medicine. Dr. Hays studies ways to use noninvasive imaging to detect cardiovascular disease. She has advanced multimodality imaging training from Johns Hopkins and attends in the Adult Echocardiography Lab at Johns Hopkins Hospital. In terms of research, she uses Cardiac MRI as a tool to study coronary and systemic endothelial function. Dr. Hays is rated as a Distinguished provider by MediFind in the treatment of Arrhythmias. Her top areas of expertise are Familial Ventricular Tachycardia, Cardiomyopathy, COVID-19, Heart Attack, and Tissue Biopsy.

Dr. David Douglass Spragg is a Professor of Medicine in the Department of Medicine (Division of Cardiology) at Johns Hopkins. In addition, he is the inaugural Edward St. John Professor of Cardiology. His research focuses on treatments for atrial fibrillation (AF), and particularly on catheter ablation for AF. Dr. Spragg received his undergraduate degree in the Comparative Study of Religion from Harvard College. He earned his medical degree from the College of Physicians and Surgeons at Columbia University. After pursuing a Sarnoff Cardiovascular research fellowship at Brigham and Women's Hospital, Dr. Spragg completed his internship and residency at Massachusetts General Hospital. He came to Johns Hopkins in 2001 for Cardiology and Cardiac EP fellowships. He served as chief fellow for the Cardiology program, and was recognized for his research during fellowship as the Michel Mirowski Cardiology Fellow. Dr. Spragg joined the faculty as an Assistant Professor in 2006, and was promoted to Associate Professor in 2014. He was promoted to the rank of Professor of Medicine in 2024. Besides his teaching and clinical appointments at the Johns Hopkins School of Medicine, Dr. Spragg is the Director of the Johns Hopkins Atrial Fibrillation Research Program. He is a Fellow of the Heart Rhythm Society. Dr. Spragg is rated as a Distinguished provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Cardiac Tamponade, Cardiac Ablation, and Pacemaker Implantation.

Jorge Ramirez is a Cardiologist in Glen Burnie,, Maryland. Dr. Ramirez is rated as an Advanced provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Sitosterolemia, Atherosclerosis, Coronary Heart Disease, and Atrial Fibrillation.

Asghar Fakhri is a Cardiologist in Glen Burnie, Maryland. Dr. Fakhri is rated as an Advanced provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Atrial Fibrillation, Pulmonary Edema, Heart Failure, and Heart Failure with Preserved Ejection Fraction (HFpEF).

Abid Fakhri is a Cardiologist in Glen Burnie,, Maryland. Dr. Fakhri is rated as an Advanced provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Heart Failure, Pulmonary Edema, Heart Failure with Preserved Ejection Fraction (HFpEF), and Atrial Fibrillation.

Andrew Zohlman is a Cardiologist in Glen Burnie,, Maryland. Dr. Zohlman is rated as an Advanced provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Atrial Fibrillation, Cardiomyopathy, Bidirectional Tachycardia, Pacemaker Implantation, and Cardiac Ablation.

Robert Benitez is a Cardiologist in Baltimore, Maryland. Dr. Benitez is rated as a Distinguished provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Mitral Valve Regurgitation, Necrosis, Cardiogenic Shock, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

Robert Hood is a Cardiologist in Baltimore,, Maryland. Dr. Hood is rated as a Distinguished provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Familial Ventricular Tachycardia, Necrosis, Mitral Valve Regurgitation, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

Russell Hillsley is a Cardiologist in Baltimore, Maryland. Dr. Hillsley is rated as a Distinguished provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Sick Sinus Syndrome, Arrhythmias, Familial Progressive Cardiac Conduction Defect, Pacemaker Implantation, and Cardiac Ablation.

Frederick Kuhn is a Cardiologist in Baltimore,, Maryland. Dr. Kuhn is rated as a Distinguished provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Coronary Heart Disease, Arrhythmias, Catecholaminergic Polymorphic Ventricular Tachycardia, and Ventricular Tachycardia.

Paul Young is a Cardiologist in Glen Burnie,, Maryland. Dr. Young is rated as an Experienced provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Heart Attack, Atrial Fibrillation, Familial Neurocardiogenic Syncope, and Apoplexy.

Vasundhara Muthu is a Cardiologist in Glen Burnie, Maryland. Dr. Muthu is rated as an Experienced provider by MediFind in the treatment of Arrhythmias. Her top areas of expertise are Atrial Fibrillation, Angina, Heart Failure, Atherosclerosis, and Pacemaker Implantation.

Debajit Roy is a Cardiologist in Glen Burnie,, Maryland. Dr. Roy is rated as an Experienced provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Atherosclerosis, Coronary Heart Disease, Atrial Fibrillation, Angina, and Gallbladder Removal.

Sambhav Karki is a Cardiologist in Glen Burnie,, Maryland. Dr. Karki is rated as an Experienced provider by MediFind in the treatment of Arrhythmias. His top areas of expertise are Atherosclerosis, Coronary Heart Disease, Angina, Atrial Fibrillation, and Pacemaker Implantation.