Jon R. Resar received his M.D. from the Medical College of Wisconsin in 1985. He completed an internal medicine residency at The Johns Hopkins Hospital and fellowships in cardiovascular medicine and interventional cardiology at The Johns Hopkins Hospital and Johns Hopkins University School of Medicine. He joined the faculty at Johns Hopkins in 1992 and is currently a Professor of Medicine/Cardiology. He was the past Director of the Adult Catheterization Laboratory and Interventional Cardiology at the Johns Hopkins Hospital. His field of specialization is management of coronary artery disease and valvular heart disease. Dr. Resar holds memberships in the American Heart Association and is a Fellow of the American College of Cardiology. Dr. Resar is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Aortic Valve Stenosis, Heart Attack, Atrial Septal Defect (ASD), Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR).

Rani Hasan is an Interventional Cardiologist in Baltimore, Maryland. Dr. Hasan is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Aortic Valve Stenosis, Apoplexy, Heart Attack, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR).

Reed Donaldson Quinn, M.D., is a cardiothoracic surgeon in Bethesda, Maryland, at Suburban Hospital. Dr. Quinn has extensive experience in the treatment of adult and congenital heart disease. He has clinical expertise in structural heart procedures including aortic, mitral, tricuspid, and pulmonary valve repairs and replacements. He also has extensive experience in aortic-mitral curtain reconstructions, percutaneous aortic valve replacement (TAVR), and LVOT enlargements. Dr. Quinn earned his Bachelor of Science Degree from Brigham Young University, his Masters in Engineering and Bioengineering from University of Utah, and his Medical Degree from University of Utah. He completed general surgery residency at University of Rochester and cardiothoracic surgery residency at The Milton S. Hershey Medical Center. Additionally, he completed a fellowship in pediatric congenital cardiovascular surgery at Children’s Hospital in Boston. Dr. Quinn has interests in innovative therapies for valvular heart disease and serves as the US Master Proctor for the Corcym Perceval sutureless valve. He has been the principal investigator at Maine Medical Center for several clinical studies. Dr. Quinn is very active in international health and has led trips for teaching and performing congenital heart surgery in Kenya, and is a visiting professor at Tenwek Hospital in Bomet, Kenya. Recent News Articles and Media Coverage At Suburban Hospital, Cardiac Surgery Expertise ShinesJohns Hopkins Medicine (March 2025). Dr. Quinn is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Aortic Valve Stenosis, Mediastinitis, Cystic Medial Necrosis of Aorta, Heart Bypass Surgery, and Aortic Valve Replacement.

"Originally from Wisconsin, Dr. Czarny attended the University of Wisconsin where he majored in molecular biology. After medical school at the Johns Hopkins University School of Medicine, he completed an internal medicine residency at the Brigham and Women’s Hospital in Boston followed by cardiovascular disease, interventional cardiology, and structural heart disease fellowships at Johns Hopkins. Currently, he is a faculty member in interventional cardiology and performs heart catheterizations and coronary artery stenting for patients with stable coronary artery disease (CAD) and myocardial infarctions (""heart attacks"") at both the Johns Hopkins Hospital and the Johns Hopkins Bayview Medical Center. He is also a member of the Structural Heart Disease team and performs minimally invasive, catheter-based treatments for structural heart disease at the Johns Hopkins Hospital including transcatheter aortic valve replacement (TAVR) for aortic valve stenosis, valve repair/replacement procedures for mitral valve regurgitation and stenosis, patent foramen ovale closure, atrial septal defect closure, alcohol septal ablation for hypertrophic cardiomyopathy, and left atrial appendage occlusion with the Watchman(TM) device. He sees patients in his structural heart disease clinics at both the Johns Hopkins Hospital and the Johns Hopkins Bayview Medical Center. Dr. Czarny's research interests include the safety of cardiac stenting at hospitals without cardiac surgery backup and outcomes of catheter-based structural heart procedures.". Dr. Czarny is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Aortic Valve Stenosis, Apoplexy, Heart Attack, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR).

Duke Cameron, M.D. is a cardiothoracic surgeon in Baltimore, MD. He is a professor of surgery at the Johns Hopkins School of Medicine. Dr. Cameron is world-renowned for his expertise in the surgical repair of the aorta. He is internationally recognized for his contributions to cardiac surgery, particularly aortic surgery for Marfan syndrome, Loeys-Dietz syndrome and other connective tissue disorders. He also specializes in mitral valve repair and adult congenital heart disease. His multiple academic contributions span the breadth of pediatric and adult cardiac surgery. Dr. Cameron is a graduate of Harvard College and Yale Medical School. He completed his general surgery training at Yale-New Haven Hospital and his cardiothoracic fellowship training at the Johns Hopkins Hospital. After his training, he remained on the faculty at Johns Hopkins. Dr. Cameron most recently served on staff at Massachusetts General Hospital before returning to Johns Hopkins. Dr. Cameron is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Aortic Dissection, Cystic Medial Necrosis of Aorta, Thoracic Aortic Aneurysm, Patent Foramen Ovale Repair, and Heart Valve Repair.

Mark Nelson, MD, specializes in cardiothoracic surgery and is board certified in thoracic and cardiac surgery by the American Board of Thoracic Surgery. He practices at UPMC Heart and Vascular Institute and is affiliated with UPMC Shadyside and UPMC Presbyterian. Dr. Nelson completed his fellowship and residency at West Virginia University School of Medicine and medical education at University of Maryland School of Medicine. Dr. Nelson is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Thoracic Aortic Aneurysm, Carotid Artery Disease, Abdominal Aortic Aneurysm (AAA), Carotid Artery Surgery, and Heart Bypass Surgery.

James Gammie is the surgical lead and co-director for the Johns Hopkins Heart and Vascular Institute and cardiac surgeon-in-chief for the Johns Hopkins Health System. With over 23 years of experience in cardiothoracic surgery, Dr. Gammie joined Johns Hopkins after serving as chief of the division of cardiac surgery at the University of Maryland Medical Center from 2012 to 2021. Dr. Gammie graduated from Brown University with a degree in biochemistry, and received his medical degree from the University of Massachusetts Medical School. Dr. Gammie trained in both general and cardiothoracic surgery at the University of Pittsburgh School of Medicine. His clinical and research efforts are focused on decreasing the mortality and morbidity of valve disease and improving the surgical treatment of mitral valve and other structural heart diseases. He performs over 225 mitral valve operations and interventions per year, and leads a cardiac surgery team that performs more than 1,200 cardiac operations annually. He is recognized by the Mitral Foundation and the American Heart Association as one of less than 25 reference surgeons in the U.S. for his experience in mitral valve repair and excellent patient outcomes. Dr. Gammie has a strong interest in all aspects of heart valve disease, and has published more than 200 peer-reviewed contributions in leading specialty journals including The New England Journal of Medicine, the Journal of Thoracic and Cardiovascular Surgery and Circulation. He has served as a deputy editor for The Annals of Thoracic Surgery and as chair of the Access and Publications Committee of the Society of Thoracic Surgeons Adult Cardiac Surgery Database. He serves on the steering committee of the NHLBI-sponsored Cardiothoracic Surgery Trials Network, and led the protocol development committee of a worldwide randomized tricuspid valve surgery trial. He is a member of the Halsted Society and the 21st Century Cardiothoracic Surgical Society. In 2011, Dr. Gammie was awarded the Johns Hopkins/University of Maryland Alliance for Science and Technology Development BioMaryland LIFE Prize, and he was named Entrepreneur of the Year at the University of Maryland Baltimore in 2014. He is the inventor of a novel transseptal catheter designed to simplify transcatheter cardiac procedures, and founded a commercial company to commercialize the device. With 20 issued or submitted patents, he continues to innovate in the mitral valve space, and recently published the world’s first clinical experience with a novel surgical repair for secondary mitral valve regurgitation, which was developed in his laboratory: mitral valve translocation. From 2016–2021, Dr. Gammie was consistently named a Top Doctor by Baltimore magazine, and in 2018 he received the Golden Apple Teacher of the Year award. Dr. Gammie is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Mitral Valve Regurgitation, Tricuspid Regurgitation, Mitral Valve Prolapse, Embolectomy, and Heart Bypass Surgery.

"Greg Kumkumian, M.D., F.A.C.C., received his medical degree from The George Washington University School of Medicine. Dr. Kumkumian is currently the Medical Director in the Cardiac Catheterization Laboratory at Suburban Hospital. His special interests include general and preventive cardiology, interventional cardiology and peripheral vascular diseases, venous diseases and peripheral interventions. Dr. Kumkumian has been recognized as one of the area's ""Top Doctors"" several times by Washingtonian magazine.". Dr. Kumkumian is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Heart Attack, Angina, Aortic Valve Stenosis, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR).

John Wang is a Cardiologist in Baltimore,, Maryland. Dr. Wang is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Aortic Valve Stenosis, Apoplexy, Heart Attack, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR).

Diljon Chahal is a Cardiologist in Baltimore,, Maryland. Dr. Chahal is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Aortic Valve Stenosis, Apoplexy, Heart Attack, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

Michael Fiocco, MD, specializes in cardiothoracic surgery and is board-certified by the American Board of Thoracic Surgery. Dr. Fiocco received his medical degree from Ross University School of Medicine and completed his residency at Ascension Saint Agnes Hospital, followed by a fellowship at the University of Maryland Medical Center. Dr. Fiocco is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Bicuspid Aortic Valve, Aortic Regurgitation, Aortic Valve Stenosis, Heart Bypass Surgery, and Heart Valve Repair.

Anuj Gupta is a Cardiologist in Baltimore,, Maryland. Dr. Gupta is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Aortic Valve Stenosis, Cardiogenic Shock, Pulmonary Veno-Occlusive Disease, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

Fayaz Shawl is a Cardiologist in Silver Spring, Maryland. Dr. Shawl is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Angina, Coronary Heart Disease, Atherosclerosis, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

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

Susie Hong is a Cardiologist in Baltimore,, Maryland. Dr. Hong is rated as an Advanced provider by MediFind in Heart Valve Repair. Her top areas of expertise are Mitral Valve Regurgitation, Familial Ventricular Tachycardia, Necrosis, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR).

Brian Barr is a Cardiologist in Westminster, Maryland. Dr. Barr is rated as an Advanced provider by MediFind in Heart Valve Repair. His top areas of expertise are Familial Ventricular Tachycardia, Necrosis, Arrhythmias, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

Ahmet Kilic is a cardiac surgeon in Baltimore, Maryland. He is an associate professor of surgery at the Baltimore-based Johns Hopkins University School of Medicine. He also serves as director of heart transplantation and mechanical circulatory support. Dr. Kilic's areas of clinical expertise include adult cardiac surgery with a special interest in heart transplantation and mechanical circulatory support. Prior to joining Johns Hopkins, Dr. Kilic served as associate professor of surgery at The Ohio State University Wexner Medical Center and was the director of the heart transplant and mechanical circulatory support programs. He was co-director of the advanced heart failure program as well as the vice director of clinical and academic affairs in the division of cardiac surgery. Although a recognized leader in the field of heart failure, Dr. Kilic’s expertise runs the spectrum of cardiac surgery. Dr. Kilic is rated as an Experienced provider by MediFind in Heart Valve Repair. His top areas of expertise are Heart Tumor, Restrictive Cardiomyopathy (RCM), Supravalvular Aortic Stenosis, Heart Transplant, and Heart Bypass Surgery.

Hamza Aziz’s clinical expertise includes general cardiac surgery, heart bypass operations, aneurysmal dilation, catheter-based technology to treat stenotic or narrowed aortic valves and transcatheter aortic valve replacement (TAVR). His research interests include genetic causes of abnormal valve development and aneurysm, Dr. Aziz is published in the fields of cardiac surgery, thoracic surgery, pediatric cardiac surgery and breast cancer surgery. Dr. Aziz is rated as an Experienced provider by MediFind in Heart Valve Repair. His top areas of expertise are Aortic Valve Stenosis, Bicuspid Aortic Valve, Collapsed Lung, Heart Bypass Surgery, and Aortic Valve Replacement.

Stephen Gottlieb is a Cardiologist in Baltimore,, Maryland. Dr. Gottlieb is rated as an Experienced provider by MediFind in Heart Valve Repair. His top areas of expertise are Heart Failure, Cardiomyopathy, Apoplexy, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR).

Dr. Stacy Fisher is a cardiologist in Baltimore, Maryland specializing in the care of adult congenital heart disease, pregnancy-related heart disease and congenital heart pulmonary hypertension. She is Associate Director of the Adult Congenital Heart Disease (ACHD) Center at the Johns Hopkins Heart and Vascular Institute and Director of the ACHD Training Program. She is also an Associate Professor of Medicine at the Johns Hopkins University School of Medicine. Her research focus is congenital heart disease in adults including pulmonary hypertension, inherited heart disease and 3D printing translational medicine. She is interested in imaging and using 3D modeling to advance cardiac care and education. Her education includes a Bachelor of Science degree in Microbiology from Miami University in Oxford, Ohio, and a Doctor of Medicine Degree from the University of Maryland School of Medicine in Baltimore, Maryland. She completed an internship and residency in Internal Medicine at Duke University in Durham, North Carolina. Her fellowship in cardiology was at the University of Rochester, Strong Memorial Hospital in Rochester, New York, including serving as the Chief Cardiology Fellow. She was then an Adult Congenital Heart Fellow at the University of Rochester, Strong Memorial Hospital. After completing her fellowship in 2001, she joined a Baltimore cardiology practice and was named Director of Women’s Cardiovascular Services and the Co-Director of the Cardiac Critical Care Unit at Sinai Hospital in Baltimore, positions which she held until 2011. She then joined University of Maryland School of Medicine as Director of Women’s and Complex Heart diseases where she started and directed the Adult Congenital Heart Program and practiced through 2022 when she joined Johns Hopkins. She was recently the President of the American Heart Association’s Greater Maryland Region. Videos Dr. Stacy Fisher. Dr. Fisher is rated as an Experienced provider by MediFind in Heart Valve Repair. Her top areas of expertise are Familial Ventricular Tachycardia, Arrhythmias, Ventricular Tachycardia, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR).