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

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

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

Dr. Katherine Wu is a general cardiologist for the Heart and Vascular Institute at Johns Hopkins Medicine with an interest in caring for patients with cardiomyopathies, coronary artery disease, and valvular heart disease as well as those interested in cardiovascular prevention. She has additional expertise in non-invasive cardiology imaging techniques. Dr. Wu received her medical degree from the University of Pennsylvania Health System School of Medicine, and completed her residency and a cardiology fellowship at the Johns Hopkins University School of Medicine. She joined the School of Medicine faculty in 2000. Dr. Wu's research interests include improving individualized risk prediction for sudden cardiac death and heart failure by developing and validating methods that incorporate novel cardiac imaging indices. Her lab is funded by the NIH/NHLBI. Dr. Wu has more than 70 peer-reviewed publications and serves on the editorial board of the Journal of Cardiovascular Magnetic Resonance and Circulation Cardiovascular Imaging and is a standing member of the NIH Clinical and Integrative Cardiovascular Sciences Study Section. Dr. Wu is rated as a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. Her top areas of expertise are Cardiomyopathy, Atrial Fibrillation, Heart Attack, and Pulmonary Hypertension.

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 a Distinguished provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Familial Dysautonomia, Atrial Fibrillation, Heart Attack, Thrombectomy, and Cardiac Ablation.

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

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

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

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

Marc Okun is a Cardiologist in Glen Burnie, Maryland. Dr. Okun is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Atrial Fibrillation, Aortic Valve Stenosis, Atherosclerosis, and Coronary Heart Disease.

Jay Penafiel is a Cardiologist in Glen Burnie, Maryland. Dr. Penafiel is rated as an Advanced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Carotid Artery Disease, Coronary Heart Disease, Atherosclerosis, and Angina.

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

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

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

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

Ratnakar Mukherjee is an Interventional Cardiologist in Glen Burnie,, Maryland. Dr. Mukherjee is rated as an Experienced provider by MediFind in the treatment of Atrial Fibrillation. His top areas of expertise are Heart Attack, Arterial Embolism, Apoplexy, Pacemaker Implantation, and Endoscopy.