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 highly rated in 24 conditions, according to our data. His top areas of expertise are Hypertrophic Cardiomyopathy (HCM), Cardiomyopathy, Familial Hypertrophic Cardiomyopathy, and Heart Attack.

David Jackson is a Cardiologist in Columbia, Maryland. Dr. Jackson is highly rated in 17 conditions, according to our data. His top areas of expertise are Arrhythmias, Catecholaminergic Polymorphic Ventricular Tachycardia, Ventricular Tachycardia, and Familial Ventricular Tachycardia.

Sean Gloth is a Cardiologist in Columbia, Maryland. Dr. Gloth is highly rated in 16 conditions, according to our data. His top areas of expertise are Heart Murmurs, Mitral Valve Regurgitation, Ectopic Heartbeat, and Aortic Regurgitation.

Dr. Eric Schwartz joined Cardiovascular Specialists in July 2012. In addition to training in nuclear cardiology, echocardiography, and vascular ultrasound, Dr. Schwartz is trained in the implantation of pacemakers and defibrillators. A Howard County native, Dr. Schwartz and his wife have two sons. In his spare time, he is an avid Peloton cyclist and enjoys strength training. A member of the Active physician admitting staff at Johns Hopkins Howard County Medical Center, he currently serves as the Chairman, Department of Medicine, Chair of the Medical Staff Credentials Committee, Co-Chair of the Johns Hopkins Howard County Medical Center STEMI Committee, and Medical Director of the Interventional Radiology Cardiovascular Lab. Dr. Shwartz is a member of the Electrophysiology Clinical Community of the JHHS. He is a past recipient of the HCGH Physician of the Year award, and two-time winner of the Johns Hopkins Innovations in Clinical Care Excellence Award. Videos Implantable Heart Monitor - Loop Recorder (Q&A) Implantable Devices for People with Heart Conditions (Q&A) 2018 Physician of the Year. Dr. Schwartz is highly rated in 11 conditions, according to our data. His top areas of expertise are Arrhythmias, Familial Ventricular Tachycardia, Catecholaminergic Polymorphic Ventricular Tachycardia, Ventricular Tachycardia, and Pacemaker Implantation.

Dr. Nisha A. Gilotra is a cardiologist in the Johns Hopkins Medicine Division of Cardiology with expertise in advanced heart failure, including the care of heart transplant and ventricular assist device patients. Dr. Gilotra specializes in inflammatory cardiomyopathies, including sarcoidosis, myocarditis and inherited causes of cardiomyopathy. Dr. Gilotra received her medical degree from Jefferson Medical College in Philadelphia, PA. She completed her medical residency, general cardiology fellowship and advanced heart failure fellowship at Johns Hopkins University School of Medicine. Between fellowships, she served as an Assistant Chief of Service for the Department of Medicine. Dr. Gilotra is highly rated in 15 conditions, according to our data. Her top areas of expertise are Sarcoidosis, Myocarditis, Cardiomyopathy, Heart Transplant, and Endoscopy.

Dr. Imtiaz H. Chowdhry is a highly experienced cardiologist with a career spanning over four decades. A graduate of the prestigious King Edward Medical University in 1975, he completed his internal medicine residency in 1981 and a fellowship in Cardiovascular Disease in 1983, both at SUNY Downstate Medical Center College of Medicine.Dr. Chowdhry is board-certified in Cardiovascular Disease and Internal Medicine by the American Board of Internal Medicine. With a special focus on Nuclear Cardiology and Cardiovascular Disease, he combines advanced expertise with compassionate care, making him a trusted healthcare provider for patients seeking the best cardiologist in Columbia, MD.Committed to improving heart health, Dr. Chowdhry offers comprehensive diagnostic and treatment options, ensuring personalized care for each patient. Whether managing complex cardiovascular conditions or providing preventive care, his dedication to excellence has made him a leading name in cardiology. Dr. Chowdhry is highly rated in 14 conditions, according to our data. His top areas of expertise are Sitosterolemia, High Cholesterol, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

Robert Mccarthy is a Cardiologist in Columbia, Maryland. Dr. Mccarthy is highly rated in 11 conditions, according to our data. His top areas of expertise are Heart Murmurs, Atrial Fibrillation, Ectopic Heartbeat, and Hypertensive Heart Disease.

Dr. Chiadi Ndumele is the Director of Obesity and Cardiometabolic Research, Director of the Heart Failure Prevention Program and Associate Professor of Medicine and Epidemiology in the Division of Cardiology at Johns Hopkins University. Dr. Ndumele is a preventive cardiologist with doctorate level training in epidemiology, who leads a research program related to characterizing the relationship of obesity and cardiometabolic risk factors with the development of cardiovascular disease, with a particular focus on heart failure risk, and to refining strategies for cardiovascular disease prevention. His work additionally addresses the impact of social determinants of health on cardiometabolic risk factors and downstream cardiovascular outcomes. Dr. Ndumele received his M.D. from Harvard University and his Internal Medicine training at Brigham and Women’s Hospital, where he also served as Chief Medical Resident. He subsequently trained in Cardiology at Johns Hopkins University, where he was also Chief Cardiology Fellow in his final year and where he also received his MHS and PhD in Epidemiology. Dr. Ndumele’s research has been supported by multiple grants from the NIH, Robert Wood Johnson Foundation and the American Heart Association (AHA). He is Chair of the Council on Lifestyle and Cardiometabolic Health of the AHA, Past Chair of the AHA Obesity Committee, and Co-Chair of the AHA Cardiovascular-Kidney-Metabolic Health Initiative. Dr. Ndumele is highly rated in 11 conditions, according to our data. His top areas of expertise are Atherosclerosis, Heart Failure, Heart Failure with Preserved Ejection Fraction (HFpEF), and Metabolic Syndrome.

Bradley Maron is a Cardiologist in Baltimore,, Maryland. Dr. Maron is highly rated in 9 conditions, according to our data. His top areas of expertise are Pulmonary Hypertension, Hypertension, Heart Failure, Hypertrophic Cardiomyopathy (HCM), and Heart Transplant.

Joban Vaishnav is a cardiologist specializing in heart failure in Baltimore, Maryland. Additionally, she is an assistant professor at the Baltimore-based Johns Hopkins University School of Medicine. She has special interest in amyloidosis. Dr. Vaishnav earned her medical degree from St. Louis University School of Medicine. She completed a residency in internal medicine at The Johns Hopkins Hospital, where she also completed fellowships in cardiology and advanced heart failure and transplant cardiology. Dr. Vaishnav is highly rated in 9 conditions, according to our data. Her top areas of expertise are Cardiac Amyloidosis, Heart Failure, Primary Localized Cutaneous Amyloidosis, Heart Transplant, and Tissue Biopsy.

Currently the practice's Managing Physician, Dr. Michael Silverman joined Cardiovascular Specialists in 1994 after completing a cardiology fellowship at Temple University in Philadelphia. He has special interests in echocardiography and nuclear cardiology. Dr. Silverman also has a strong interest in cardiovascular disease in athletes, especially those who participate in endurance sports. Under his direction, our echocardiography program achieved accreditation by IAC, the Intersocietal Accreditation Commission. He is presently Medical Director of the practice's nuclear cardiology department, which is also accredited by IAC. A member of the Active physician admitting staff at Johns Hopkins Howard County Medical Center, he is past president of the HCGH Professional Staff and past Chairman of the Department of Medicine at HCGH. His community involvement includes past membership on the Board of Directors of the Ulman Cancer Fund for Young Adults and the Columbia Association Medical Advisory Board. Currently, he is a member of the American College of Cardiology Maryland Chapter Board of Governors. Dr. Silverman is an instructor in Medicine-Cardiology at Johns Hopkins Medicine. A Baltimore native, he went to Duke University and now resides in Ellicott City with his wife. He has two daughters and two grandsons. Dr. Silverman's personal interests include cycling and triathlons. He has completed three Ironman triathlons (including KONA) and numerous other athletic endurance events. Videos Heart Attack Symptoms and Prevention (Q&A) The Importance of Calling 9-1-1 for Heart Attack Symptoms. Dr. Silverman is highly rated in 6 conditions, according to our data. His top areas of expertise are Mitral Valve Regurgitation, High Cholesterol, Atherosclerosis, and Coronary Heart Disease.

Dr. Barouch is Associate Professor of Medicine in the Division of Cardiology, Department of Medicine, and a member of the Advanced Heart Failure and Cardiac Transplantation group at Johns Hopkins Hospital. Dr. Barouch received her undergraduate degree from Harvard University in 1992 and her medical degree from Johns Hopkins in 1996. She continued at Johns Hopkins for residency training in Internal Medicine, completed in 1999, and fellowship in Cardiovascular Disease and Advanced Heart Failure/Transplant, completed in 2003. She has expertise in the outpatient management of advanced heart failure and many types of cardiomyopathies. Dr. Barouch also has a longstanding interest in women’s cardiovascular health – particularly in how some cardiac conditions affect women differently or present with distinctive symptoms. She is the Medical Director of the Columbia Heart Failure Clinic, in partnership with Johns Hopkins Howard County Medical Center, and the Howard County Director of the Women’s Cardiovascular Health Center. She is also the Director of the Sports Cardiology Program, which offers expert cardiac care specifically geared towards athletes of all abilities. Dr. Barouch believes that educating people about heart disease, medications and lifestyle changes, including healthy eating habits and regular exercise, is critically important in helping her patients understand how to achieve and maintain wellness and feel in control of their cardiovascular health. She is an avid runner and triathlete herself, competing in several triathlons and other races per year, as well as the occasional marathon. Dr. Barouch is highly rated in 6 conditions, according to our data. Her top areas of expertise are Cardiomyopathy, Cardiac Amyloidosis, Arrhythmogenic Right Ventricular Cardiomyopathy, and Primary Localized Cutaneous Amyloidosis.

Dr. Andrew Weiss joined Cardiovascular Specialists in July 2016 following completion of his cardiology fellowship at the University of Maryland Medical Center in Baltimore, where his training included nuclear cardiology, echocardiography and vascular ultrasound. He completed his medical school training at the University of Pennsylvania School of Medicine in Philadelphia, and residency at the Hospital of the University in Pennsylvania, also in Philadelphia. Originally from the Lancaster, Pennsylvania area, Dr. Weiss and his wife and two daughters reside in Howard County. Dr. Weiss is a member of the Active physician admitting staff at Johns Hopkins Howard County Medical Center. He serves as a member of the Johns Hopkins Howard County Medical Center Pharmacy and Therapeutics Committee. Videos 2018 Best Consulting Physician—Andrew Weiss, M.D., Howard County General Hospital. Dr. Weiss is highly rated in 4 conditions, according to our data. His top areas of expertise are Arrhythmias, High Cholesterol, Atherosclerosis, and Atrial Fibrillation.

Dr. Keith Friedman joined the practice in 2003 following the completion of his Cardiology fellowship at the University of Maryland Medical Center. Dr. Friedman is also trained in nuclear cardiology and echocardiography. Born and raised in Baltimore, Dr. Friedman and his wife, who reside in Pikesville, have two sons and a daughter. A member of the Active physician admitting staff at Johns Hopkins Howard County Medical Center, he currently serves as Section Chief of Cardiology and as Medical Director of the Cardiac Telemetry Unit. Dr. Friedman is highly rated in 3 conditions, according to our data. His top areas of expertise are Arrhythmias, Atrial Fibrillation, High Cholesterol, and Cardiomyopathy.

Dr. Kalathiya received his undergraduate and medical degrees at the University of Kentucky before joining the Osler Medical Residency at The Johns Hopkins Hospital. Subsequently, Dr. Kalathiya completed his Cardiovascular Disease and Interventional Cardiology fellowships at the University of Chicago. Dr. Kalathiya is an interventional cardiologist with expertise in complex coronary interventions, structural interventions, peripheral interventions for claudication and critical limb ischemia, interventional pulmonary embolism therapies, and mechanical circulatory support to treat cardiogenic shock. Dr. Kalathiya is highly rated in 2 conditions, according to our data. His top areas of expertise are Heart Attack, Angina, Heart Failure, Transcatheter Aortic Valve Replacement (TAVR), and Aortic Valve Replacement.

Jennifer Brady is a Cardiologist in Columbia, Maryland. Dr. Brady is highly rated in 2 conditions, according to our data. Her top areas of expertise are Fainting, Mitral Valve Prolapse, Familial Ventricular Tachycardia, and Inappropriate Sinus Tachycardia (IST).

Dr. Alexander Chudnovsky joined Cardiovascular Specialists in 2004 following the completion of his Cardiology fellowship at the Milton S. Hershey Medical Center in Hershey, Pennsylvania. He is trained in nuclear cardiology, echocardiography and transesophageal echo. He is currently the director of echocardiography for the practice. He and his wife, who is a radiologist, have two children and reside in Howard County. A member of the Active physician admitting staff at Johns Hopkins Howard County Medical Center, he currently serves Medical Director of Echocardiography and as Medical Director of Cardiac Rehabilitation. Videos Diagnostic Testing for Heart Disease (Q&A). Dr. Chudnovsky is highly rated in 1 condition, according to our data. His top areas of expertise are Atrial Fibrillation, Atherosclerosis, Coronary Heart Disease, and Mitral Valve Regurgitation.

Dr. Adrian Le Preston, who joined Cardiovascular Specialists in May 2005, is a clinical cardiologist who specializes in consultative cardiology, echocardiography, and nuclear cardiology. She is a member of the Active physician admitting staff at Johns Hopkins Howard County Medical Center. She also has special interests in women's preventive health. Dr. Preston has office hours four days a week at Cardiovascular Specialists, and spends the rest of her time reading, exercising, walking her dog, cooking and mentoring medical students. She lives with her husband and two grown children. Videos Your Heart Health - Changes Every One of Us Can Make Today (Q&A) Heart Attack Symptoms for Women versus Men. Dr. Preston is highly rated in 1 condition, according to our data. Her top areas of expertise are Hypertensive Heart Disease, Pediatric Myocarditis, Necrosis, and Atherosclerosis.

Martin Engelhardt is a Cardiologist in Ellicott City,, Maryland. Dr. Engelhardt is highly rated in 17 conditions, according to our data. His top areas of expertise are Atrial Fibrillation, Familial Dilated Cardiomyopathy, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

Martin Albornoz is a Cardiologist in Catonsville, Maryland. Dr. Albornoz is highly rated in 13 conditions, according to our data. His top areas of expertise are Heart Attack, Apoplexy, Angina, Pacemaker Implantation, and Angioplasty.

Muhammad Amer is a Cardiologist in Catonsville,, Maryland. Dr. Amer is highly rated in 13 conditions, according to our data. His top areas of expertise are Sick Sinus Syndrome, Arrhythmias, Atrial Fibrillation, Pacemaker Implantation, and Cardiac Ablation.

Gautam Ramani is an Advanced Heart Failure and Transplant Cardiologist and a Cardiologist in Baltimore, Maryland. Dr. Ramani is highly rated in 13 conditions, according to our data. His top areas of expertise are Pulmonary Hypertension, Pulmonary Veno-Occlusive Disease, Cardiomyopathy, Embolectomy, and Aortic Valve Replacement. Dr. Ramani is currently accepting new patients.

John Yackee is a Cardiologist in Laurel,, Maryland. Dr. Yackee is highly rated in 3 conditions, according to our data. His top areas of expertise are Atrial Fibrillation, Arrhythmias, Sick Sinus Syndrome, Hypertrophic Cardiomyopathy (HCM), and Pacemaker Implantation.

Dr. Zulqarnain Khan joined Cardiovascular Specialists in the summer of 2025. In addition to general cardiology, he trained in sports cardiology, nuclear cardiology, echocardiography, and vascular ultrasound. He completed medical school at the University of Maryland School of Medicine in Baltimore. Dr. Khan went on to complete his internal medicine residency at the University of Maryland Medical Center, where he served as Chief Resident. He completed his cardiology fellowship at the University of Maryland Medical Center, where he participated in the Sports Cardiology track (Johns Hopkins-University of Maryland combined program). Dr. Khan grew up in Catonsville, Maryland. He and his wife, Ishmal, live in Federal Hill with their two children. In his spare time, Dr. Khan is a diehard Ravens and Orioles fan, who also enjoys superhero movies (DC and Marvel). His top areas of expertise are Atrial Myxoma, Carney Complex, Heart Tumor, and Myocarditis.

Dr. Jasmin Sahbaz joined Cardiovascular Specialists in July 2021 following completion of his cardiology fellowship at the University of Maryland Medical Center in Baltimore, where his training included nuclear cardiology, echocardiogaphy and vascular ultrasound. He was the chief fellow during his last year of training. He completed his medical school training at SUNY Upstate Medical University in Syracuse, New York and a residency at the University of Maryland Medical Center. Originally from Bosnia, and then the Ithaca, New York area, Dr. Sahbaz graduated from Cornell University. He resides in Howard County with his wife and two children. In his spare time, he is an avid cyclist and triathlete. His top areas of expertise are Heart Attack, Heart Failure, Pulmonary Edema, and Angina.