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 Advanced provider by MediFind in the treatment of Cardiac Tamponade. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Cardiomyopathy, Cardiac Ablation, and Heart Transplant.

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 Cardiac Tamponade. 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 Cardiac Tamponade. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Cardiac Tamponade, Cardiac Ablation, and Pacemaker Implantation.

Dr. Thomas Stephen Metkus is an assistant professor of cardiology at the Johns Hopkins University School of Medicine. His research focuses on using cardiac physiology for risk stratification and therapeutics in non-cardiac critical illness such as sepsis and the acute respiratory distress syndrome (ARDS), and optimizing the management of non-cardiac organ failure in primary cardiac diseases such as heart failure and acute coronary syndromes. Dr. Metkus received his undergraduate degree from Boston University College of Engineering. He earned a medical degree from the University of Pennsylvania School of Medicine and completed a residency at Brigham and Women’s Hospital. After completing residency, Dr. Metkus was a clinical fellow at both Harvard Medical School and Johns Hopkins Hospital. Prior to joining the faculty at the Johns Hopkins Medical School he was an instructor of medicine at the Harvard Medical School. His educational focus includes teaching clinical cardiology and critical care, echocardiography, and electrocardiography to students, residents, and fellows at the Johns Hopkins Hospital. Videos Dr. Thomas Metkus. Dr. Metkus is rated as an Advanced provider by MediFind in the treatment of Cardiac Tamponade. His top areas of expertise are Heart Attack, Apoplexy, Arterial Embolism, Heart Bypass Surgery, and Coronary Artery Bypass Graft (CABG).

Dr. Jose Madrazo is a general cardiologist in the Johns Hopkins Division of Medicine, and an assistant professor of medicine at the Johns Hopkins School of Medicine. He received his medical degree from the University of Puerto Rico School of Medicine and completed his residency at the Baylor College of Medicine in Houston, TX. Dr. Madrazo pursued a cardiovascular fellowship with a focus on echocardiography at the Washington University School of Medicine before joining the Hopkins faculty. Dr. Madrazo is rated as an Advanced provider by MediFind in the treatment of Cardiac Tamponade. His top areas of expertise are Hypertrophic Cardiomyopathy (HCM), Cardiomyopathy, Familial Hypertrophic Cardiomyopathy, and Heart Attack.

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

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 Cardiac Tamponade. His top areas of expertise are Ventricular Tachycardia, Arrhythmias, Sarcoidosis, Cardiac Ablation, and Pacemaker Implantation.

Lena Mathews specializes in general cardiology and echocardiography. She received her medical degree from University of Pennsylvania School of Medicine and completed an internal medicine residency at Brigham and Women’s Hospital. She completed fellowships in cardiology and echocardiography at the Johns Hopkins University School of Medicine. Dr. Mathews is rated as an Advanced provider by MediFind in the treatment of Cardiac Tamponade. Her top areas of expertise are Apoplexy, Heart Attack, Heart Failure with Preserved Ejection Fraction (HFpEF), and Atherosclerosis.

Dr. Jeffrey Brinker directs the cardiac pacemaker service and is an expert in interventional cardiology including pacemakers and implantable cardio defibrillators (ICDs), angioplasty, heart catheterization and lead extraction. Dr. Brinker received his undergraduate degree from Hofstra University and his medical degree AOA summa cum laude from the State University of New York’s Downstate Medical Center. He interned at Johns Hopkins Hospital and entered the residency program at Kings County Hospital, interrupting his residency for military service. After completing his residency at Kings County, he pursued a fellowship in cardiology at the University of Louisville, Kentucky and in cardiovascular disease at the Johns Hopkins Hospital. Dr. Brinker joined the Johns Hopkins faculty in 1978. He directed the Catheterization Laboratory until 1990 and the Interventional Cardiology program until 1999. Dr. Brinker has published over 250 journal articles and book chapters on topics of interventional cardiology. His research interests include cardiovascular imaging, cardiac pacemakers and lead extraction. He has served on the editorial boards of several medical journals and is the recipient of numerous awards and honors, including seven military awards and Alpha Omega Alpha Honor Society. Dr. Brinker is a Fellow of the American College of Cardiology and serves on national health care committees and task forces. Dr. Brinker is rated as an Advanced provider by MediFind in the treatment of Cardiac Tamponade. His top areas of expertise are Familial Dysautonomia, Atrial Fibrillation, Heart Attack, Thrombectomy, and Cardiac Ablation.

Steven Hearne is a Cardiologist in Salisbury,, Maryland. Dr. Hearne is rated as an Advanced provider by MediFind in the treatment of Cardiac Tamponade. His top areas of expertise are Coronary Heart Disease, Atrial Fibrillation, Angina, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR).

Swapna Kanuri is a Cardiologist in Frederick, Maryland. Dr. Kanuri is rated as an Advanced provider by MediFind in the treatment of Cardiac Tamponade. Her top areas of expertise are Adenosine Deaminase 2 Deficiency, Cardiac Tamponade, Mitral Valve Regurgitation, and Fainting.

Mark Treuth is a Cardiologist in Salisbury, Maryland. Dr. Treuth is rated as an Advanced provider by MediFind in the treatment of Cardiac Tamponade. His top areas of expertise are Coronary Heart Disease, Angina, Atherosclerosis, Atrial Fibrillation, and Pacemaker Implantation.

Steven Schulman is a Cardiologist in Baltimore, Maryland. Dr. Schulman is rated as an Advanced provider by MediFind in the treatment of Cardiac Tamponade. His top areas of expertise are Apoplexy, Heart Attack, Cardiogenic Shock, Percutaneous Coronary Intervention (PCI), and Aortic Valve Replacement.

Joseph Cinderella is a Cardiologist in Salisbury, Maryland. Dr. Cinderella is rated as an Advanced provider by MediFind in the treatment of Cardiac Tamponade. His top areas of expertise are Aortic Valve Stenosis, Angina, Coronary Heart Disease, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

Dr. Marlene Stephanie Williams is an Associate professor at the Johns Hopkins University School of Medicine. Her research focuses on coronary atherosclerosis and platelet function, and her particular focus is on platelet function as it relates to the acute coronary syndrome. Dr. Williams has examined platelet function and its correlation to platelet functional genomics and runs a platelet physiology laboratory on the Johns Hopkins Bayview campus. The goal for her cardiovascular platelet laboratory has been to identify the etiology of platelet dysfunction in many disease states and apply methods that may improve this dysfunction that may eventually be translated to therapies for patients with cardiovascular disease. She is a prior recipient of an NIH career mentored award (K23) examining platelet functional genomics and an NIH RO1 award addressing platelet serotonin signaling in depression and heart disease. Dr. Williams has several publications covering platelet functional changes in settings of interventional cardiology, acute coronary syndrome, and heart disease and depression. She has participated in several NHLBI advisory committees, review groups, and study sections. Dr. Williams has been the Course Director, of the advanced clinical clerkship in coronary intensive care at the Bayview Medical center and has mentored many medical residents and cardiology fellows. Dr. Williams received her undergraduate degree in biochemistry from McGill University. She earned a medical degree from the Columbia University College of Physicians & Surgeons and completed a residency at Johns Hopkins Hospital. After completing a residency, Dr. Williams was a cardiology fellow at Mount Sinai Hospital and Johns Hopkins Hospital. Dr. Williams is currently the Clinical Director of Cardiology at Johns Hopkins Bayview Medical Center. Dr. Williams is rated as an Experienced provider by MediFind in the treatment of Cardiac Tamponade. Her top areas of expertise are Heart Attack, Apoplexy, Arterial Embolism, Pacemaker Implantation, and Hormone Replacement Therapy (HRT).

Piamsook Angkeow is a Cardiologist and a Cardiac Electrophysiologist in Elkton, Maryland. Dr. Angkeow is rated as an Experienced provider by MediFind in the treatment of Cardiac Tamponade. His top areas of expertise are Atrial Fibrillation, Familial Progressive Cardiac Conduction Defect, Angina, Pacemaker Implantation, and Cardiac Ablation.

Sriram Padmanabhan is a Nuclear Medicine provider in Baltimore, Maryland. Dr. Padmanabhan is rated as an Experienced provider by MediFind in the treatment of Cardiac Tamponade. His top areas of expertise are Coronary Heart Disease, Atrial Fibrillation, Atherosclerosis, and Angina.

Dr. Tigist Hailu is a general cardiologist in the Johns Hopikins Heart and Vascular Institute of the Division of Medicine. She practices at Johns Hopkins Cardiology at the Greater Baltimore Medical Center (GBMC) and at Johns Hopkins Medicine, White Marsh. Dr. Hailu is also an instructor of medicine at the Johns Hopkins University School of Medicine. Dr. Hailu received her medical degree from the Yale University School of Medicine. She completed her medical residency at the Hospital of the University of Pennsylvania and pursued a fellowship in cardiology at New York Presbyterian Hospital, Cornell Campus. Dr. Hailu is rated as an Experienced provider by MediFind in the treatment of Cardiac Tamponade. Her top areas of expertise are Cardiomyopathy, Hypertrophic Cardiomyopathy (HCM), Subvalvular Aortic Stenosis, and Angina.

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 Experienced provider by MediFind in the treatment of Cardiac Tamponade. His top areas of expertise are Cardiomyopathy, Arrhythmias, Heart Attack, Cardiac Ablation, and Pacemaker Implantation.

Dr. Shapiro is a professor of Medicine at Johns Hopkins University and director of the non-invasive cardiology labs at Johns Hopkins Bayview Medical Center. He trained at Johns Hopkins School of Medicine in internal medicine and at the University of Chicago in Cardiology. He has long term interests in cardiac imaging, left ventricular deformation, left ventricular diastolic function, and non-invasive imaging, and has published more than 100 papers on these subjects. His original work utilized echocardiography, then cardiac MRI, and now cardiac CT. Currently, in addition to seeing and following patients with a wide variety of cardiac diseases, he is devoting much of his time toward teaching and research in cardiac CT angiography. Dr. Shapiro directs the Johns Hopkins Cardiac CT Practicum, a course that trains cardiologists and radiologists to interpret Cardiac CT, that has become popular and well known the world over. Dr. Shapiro is rated as an Experienced provider by MediFind in the treatment of Cardiac Tamponade. His top areas of expertise are Heart Attack, Apoplexy, Coronary Heart Disease, and Angina.