Dr. Hanna K. Gaggin is a cardiologist, educator and clinical research scientist specializing in the application of biology-based science and evidence-based medicine in the comprehensive risk assessment and risk reduction of patients with a broad array of cardiovascular diseases at Massachusetts General Hospital (MGH) and Harvard Medical School (HMS), Boston, MA. Dr. Gaggin received her medical degree from the Eastern Virginia Medical School and received her clinical training at the University of Virginia Health System for her Internal Medicine residency and the University of Pittsburgh Medical Center for her cardiology fellowship, where she served as Associate Chief Fellow for Education and the Director of the Cardiology Board Review Conference. She completed an MPH with a concentration in Quantitative Methods at the Harvard School of Public Health to focus on evidence-based research methods and clinical practice. During her clinical research fellowship at MGH, she received the Ruth and James Clark Fund for Cardiac Research Innovation award, an award to advance novel approaches in the evaluation and treatment of cardiovascular patients. Since joining the faculty at MGH and HMS, Dr. Gaggin has provided wide-ranging cardiovascular care and quality education material for physicians and patients. She is the lead co-editor of the MGH Cardiology Board Review book, which features the expertise of over 70 faculty members and fellows at MGH and HMS. In addition, she has authored numerous review articles and book chapters for high-tier journals and preeminent textbooks. Dr. Gaggin is an expert in the field of cardiac biomarkers, focusing on the use of biomarkers in heart failure patients. Her expertise and innovations in clinical research have garnered her national and international recognition for excellence.