
Overview
Dr. Johnston joined the Cardiology Faculty in 2008 and currently practices Interventional Cardiology at Johns Hopkins Hospital, Bayview Medical Center, and Johns Hopkins Howard County Medical Center. His primary research interest is in novel therapies for heart failure and he is involved in both clinical trials and pre-clinical studies currently underway at Johns Hopkins.
Dr. Johnston is rated as an Advanced provider by MediFind in the treatment of Inappropriate Sinus Tachycardia (IST). His top areas of expertise are Heart Attack, Apoplexy, Arterial Embolism, Bone Marrow Aspiration, and Percutaneous Coronary Intervention (PCI).
His clinical research consists of co-authoring 28 peer reviewed articles and participating in 1 clinical trial. MediFind looks at clinical research from the past 15 years.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- POS
- PPO
- EPO
- HMO
- PPO
- INSURANCE PLAN
- MEDICARE PDP
- PPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- HMO
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE-MEDICAID PLAN
- OTHER MANAGED MEDICAID
- OTHER MEDICAID
- STATE MEDICAID
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE PART D
- INSURANCE PLAN
- MEDICARE MAPD
- OTHER COMMERCIAL
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
301 Mason Lord Drive, Suite 3300, Suite 3300, Baltimore, MD 21224
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
1 Clinical Trials
Carroll Health Group-Cardiology
Radhika Kuna is a Cardiologist in Westminster, Maryland. Dr. Kuna is rated as a Distinguished provider by MediFind in the treatment of Inappropriate Sinus Tachycardia (IST). Her top areas of expertise are Inappropriate Sinus Tachycardia (IST), Familial Ventricular Tachycardia, Arrhythmias, and Atrial Fibrillation.
Johns Hopkins Endoscopy & Surgery Center - Columbia
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 a Distinguished provider by MediFind in the treatment of Inappropriate Sinus Tachycardia (IST). His top areas of expertise are Hypertrophic Cardiomyopathy (HCM), Cardiomyopathy, Familial Hypertrophic Cardiomyopathy, and Heart Attack.
The Johns Hopkins Hospital
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 a Distinguished provider by MediFind in the treatment of Inappropriate Sinus Tachycardia (IST). His top areas of expertise are Heart Attack, Apoplexy, Arterial Embolism, and Inappropriate Sinus Tachycardia (IST).
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Distinguished
- ApoplexyDr. Johnston isDistinguished. Learn about Apoplexy.
- Heart AttackDr. Johnston isDistinguished. Learn about Heart Attack.
- Advanced
- AnginaDr. Johnston isAdvanced. Learn about Angina.
- Arterial EmbolismDr. Johnston isAdvanced. Learn about Arterial Embolism.
- AtherosclerosisDr. Johnston isAdvanced. Learn about Atherosclerosis.
- Bone Marrow AspirationDr. Johnston isAdvanced. Learn about Bone Marrow Aspiration.
- Coronary Heart DiseaseDr. Johnston isAdvanced. Learn about Coronary Heart Disease.
- Familial Ventricular TachycardiaDr. Johnston isAdvanced. Learn about Familial Ventricular Tachycardia.
- Experienced
- AngioplastyDr. Johnston isExperienced. Learn about Angioplasty.
- Anomalous Left Coronary Artery from the Pulmonary Artery
- ArrhythmiasDr. Johnston isExperienced. Learn about Arrhythmias.
- Arrhythmogenic Right Ventricular Cardiomyopathy
- Atrial FibrillationDr. Johnston isExperienced. Learn about Atrial Fibrillation.
- Bidirectional TachycardiaDr. Johnston isExperienced. Learn about Bidirectional Tachycardia.

