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 a Distinguished provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Ventricular Tachycardia, Cardiac Ablation, and Pacemaker Implantation.

Roy Beinart is a Cardiologist in Baltimore, Maryland. Dr. Beinart is rated as a Distinguished provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Atrial Fibrillation, Ventricular Fibrillation, Ventricular Tachycardia, Pacemaker Implantation, and Cardiac Ablation.

Vikas Kalra is a Cardiac Electrophysiologist and a Cardiologist in Towson, Maryland. Dr. Kalra is rated as an Advanced provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Atrial Fibrillation, Familial Ventricular Tachycardia, Ventricular Tachycardia, Pacemaker Implantation, and Cardiac Ablation. Dr. Kalra is currently accepting new patients.

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 Ventricular Fibrillation. His top areas of expertise are Ventricular Fibrillation, Heart Attack, Ventricular Tachycardia, Cardiac Ablation, and Lithotripsy.

Jonathan Chrispin, M.D., is an Associate Professor of Medicine in the Johns Hopkins Medicine Division of Cardiology, Electrophysiology and Arrhythmia, as well as an Associate Professor of Biomedical Engineering at Johns Hopkins University. Dr. Chrispin focuses on all aspects of clinical electrophysiology, including pacemaker/defibrillator implantation and complex catheter ablation for atrial and ventricular arrhythmias. Dr. Chrispin received his Bachelor of Arts degree from Harvard University. He received his Doctor of Medicine degree from Vanderbilt University. He completed intern and residency training in internal medicine at The Johns Hopkins Hospital, where he also completed a fellowship in cardiovascular disease and served as chief clinical cardiac electrophysiology fellow. He is a member of the American College of Cardiology, the American Heart Association, and the Heart Rhythm Society. Dr. Chrispin directs the Ventricular Arrhythmia Ablation and Research program, focusing on using advanced cardiac imaging to better understand the structural substrate associated with the development of ventricular arrhythmias and using artificial intelligence to improve the risk stratification of sudden cardiac death. Further, he is involved in developing clinical trials to improve the safety and efficacy of catheter ablation for the treatment of ventricular tachycardia. His work has led to Dr. Chrispin publishing in a number of international journals, including Circulation, the Journal of the American College of Cardiology, Heart Rhythm Journal, Nature Cardiovascular Research, Journal of the American Heart Association, and EP Europace. Dr. Chrispin is rated as an Advanced provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Ventricular Tachycardia, Arrhythmias, Sarcoidosis, Cardiac Ablation, and Pacemaker Implantation.

Dr. Andreas S. Barth is an Associate Professor in the Division of Cardiology at the Johns Hopkins School of Medicine and Director of the Center for Inherited Heart Diseases. His clinical work focuses on clinical cardiac electrophysiology with a specific focus on inherited arrhythmia syndromes and channelopathies, including long QT syndrome, Brugada syndrome, CPVT and arrhythmogenic cardiomyopathies. Additionally, Dr. Barth participates in a multidisciplinary clinic at Kennedy Krieger Institute providing Cardiology care to patients with muscular dystrophies and mitochondrial disease. Dr. Barth performs pacemaker and defibrillator implantation and complex catheter ablations for atrial and ventricular arrhythmias. His basic research lab explores the relationship between metabolic and arrhythmogenic ion channel remodeling in heart failure and myotonic dystrophy. Dr. Barth earned a combined doctor of medicine and doctor of philosophy from the Ludwig-Maximilians-University in Munich, Germany. He joined the Johns Hopkins faculty in 2016. He has been recognized with the First Prize for the Stanley L. Blumenthal Cardiology Research Award in Clinical Science in the Division of Cardiology at Johns Hopkins Hospital, and as a Young Investigator Award Finalist of the American Heart Association and Heart Rhythm Society. Dr. Barth is rated as an Advanced provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Cardiomyopathy, Arrhythmias, Heart Attack, Cardiac Ablation, and Pacemaker Implantation.

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 an Advanced provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Atrial Fibrillation, Atrioventricular Nodal Reentrant Tachycardia (AVNRT), Arrhythmias, Cardiac Ablation, and Heart Transplant.

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 an Advanced provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Cardiac Tamponade, Cardiac Ablation, and Pacemaker Implantation.

Dr. Richard (Rick) Carrick is a general cardiologist in the Johns Hopkins Division of Medicine and is an assistant professor of medicine at the Johns Hopkins School of Medicine. He also serves as associate director of the Johns Hopkins Hypertrophic Cardiomyopathy Center of Excellence. Originally from Massachusetts, he completed his medical training as well as a Ph.D. in Bioengineering at the University of Vermont and did his internal medicine residency training at Tufts Medical Center in Boston, MA. He completed his Cardiovascular Disease Fellowship and a T32 Research Fellowship at Johns Hopkins. His research focuses on the use of advanced computational techniques like machine-learning and artificial intelligence to improve risk stratification in patients with inherited heart disease. Clinically, he specializes in echocardiography and the care of patients with hypertrophic cardiomyopathy (HCM) and other genetic cardiomyopathies. Dr. Carrick is rated as an Advanced provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Cardiomyopathy, Hypertrophic Cardiomyopathy (HCM), Ventricular Tachycardia, Arrhythmias, and Cardiac Ablation.

James Weiss is a Cardiologist in Baltimore, Maryland. Dr. Weiss is rated as a Distinguished provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Ventricular Fibrillation, Low Potassium Level, Heart Attack, Arrhythmias, and Cardiac Ablation.

Sean Beinart is a Cardiologist in Annapolis, Maryland. Dr. Beinart is rated as a Distinguished provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Arrhythmias, Atrioventricular Nodal Reentrant Tachycardia (AVNRT), Atrial Fibrillation, Pacemaker Implantation, and Cardiac Ablation.

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

Julia Cadrin is a Cardiologist in Baltimore,, Maryland. Dr. Cadrin is rated as an Advanced provider by MediFind in the treatment of Ventricular Fibrillation. Her top areas of expertise are Cardiomyopathy, Arrhythmogenic Right Ventricular Cardiomyopathy, Cardiac Arrest, Familial Hypertrophic Cardiomyopathy, and Cardiac Ablation.

Magdi Saba is a Cardiologist in Baltimore,, Maryland. Dr. Saba is rated as an Advanced provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Ventricular Tachycardia, Arrhythmias, Ventricular Fibrillation, Paroxysmal Supraventricular Tachycardia (PSVT), and Cardiac Ablation.

Jay Mazel is a Cardiologist in Annapolis,, Maryland. Dr. Mazel is rated as an Advanced provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Cardiomyopathy, Pacemaker Implantation, and Cardiac Ablation.

Alexander Asser is a Cardiac Electrophysiologist in Germantown, Maryland. Dr. Asser is rated as an Advanced provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Arrhythmias, Familial Ventricular Tachycardia, Multifocal Atrial Tachycardia, Pacemaker Implantation, and Cardiac Ablation.

Alan Cheng is a Cardiologist in Baltimore,, Maryland. Dr. Cheng is rated as an Advanced provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Ventricular Fibrillation, Arrhythmias, Ventricular Tachycardia, Cardiac Tamponade, and Cardiac Ablation.

Roy Sumon is a Cardiologist in Baltimore,, Maryland. Dr. Sumon has been practicing medicine for over 10 years and is rated as an Advanced provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Ventricular Fibrillation, Heart Attack, Coronary Heart Disease, Percutaneous Coronary Intervention (PCI), and Stent Placement.

Dr. Erin D. Michos is a Professor of Medicine within the Division of Cardiology at Johns Hopkins School of Medicine, with joint appointment in the Department of Epidemiology at the Johns Hopkins Bloomberg School of Public Health. She is the Director of Women's Cardiovascular Health and the Associate Director of Preventive Cardiology within the Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease. Dr. Michos is an internationally known expert in Preventive Cardiology and Women’s Health, having authored >700 publications and 11 book chapters. Her research involves (1) Women’s Cardiovascular Health; (2) Lipids and Lipid management; (3) Cardio-Kidney-Metabolic and Obesity disease management (4) Coronary artery calcium, inflammation and biomarkers of cardiovascular risk. She is the co-Editor-in-Chief for the American Journal of Preventive Cardiology. She is Co-Director of the IMPACT Center (Improving Participation Among Diverse Populations in Cardiovascular Clinical Trials) at Johns Hopkins, funded by the American Heart Association (AHA). She is a co-investigator in several NIH-funded studies including the Multi-Ethnic Study of Atherosclerosis and Atherosclerosis Risk in Communities cohorts. She has served as the Training Director for four AHA Strategic Focused Research Networks. She has mentored over 60 individuals and the recipient of 2 mentoring awards. Additionally, she was the recipient of the Nanette Wegner Award for Women’s Health Medical Leadership by the Women Heart Organization and the Donna Vogel Women’s Health Champion Award by Johns Hopkins University. Dr. Michos completed medical school at Northwestern University, Internal Medicine residency and Cardiology fellowship at the Johns Hopkins Hospital, and a Masters of Health Science degree at the Johns Hopkins Bloomberg School of Public Health. Dr. Michos is rated as an Experienced provider by MediFind in the treatment of Ventricular Fibrillation. Her top areas of expertise are Atherosclerosis, Vitamin D Deficiency, Heart Failure, Percutaneous Coronary Intervention (PCI), and Thrombectomy.

Dr. Robert Weiss is a Clarence Doodeman professor of cardiology as well as a professor of medicine and radiology at the Johns Hopkins University School of Medicine. Dr. Weiss directs a multi-disciplinary team at Johns Hopkins as well as collaborators at Cedars Sinai Medical Center in Los Angeles are dedicated to identifying the most important clinical, genetic, structural, contractile and metabolic causes of sudden cardiac death as well as the means to reverse the underlying pathology and lower risk. His research interests include energetic consequences and causes of heart failure, predictors of sudden cardiac death, non-invasive magnetic resonance, role of creatine kinase in heart failure, spectroscopy and imaging, coronary endothelial function and small animal cardiovascular imaging. Dr. Weiss received an undergraduate degree in physics form Dickinson College and a medical degree from Pennsylvania State University College of Medicine AOA Hershey Medical Center before joining Johns Hopkins in 1983 as an intern and assistant resident. Dr. Weiss has published extensively and has most recently been awarded a fellowship with the International Society of Magnetic Resonance in Medicine. Dr. Weiss is rated as an Experienced provider by MediFind in the treatment of Ventricular Fibrillation. His top areas of expertise are Pulmonary Hypertension, Heart Attack, Pulmonary Veno-Occlusive Disease, and Coronary Heart Disease.