Dr. de Lemos is Professor of medicine and holds the Sweetheart Ball-Kern Wildenthal, MD, PhD Distinguished Chair in Cardiology. He is the Cardiology Service Chief at Parkland Memorial Hospital where he also serves as CCU Director. He was the director of the Cardiology Fellowship at UT Southwestern from 2005-2011. He is an active investigator in the Donald W. Reynolds Cardiovascular Research Center at UT Southwestern, and the Medical Director of the Dallas Heart Study. He has chaired or co-chaired several research planning committees at UT Southwestern. His primary research interests are in early detection, risk assessment and management of cardiovascular disease, with a particular focus on the role of cardiovascular biomarkers. His research has evaluated existing biomarkers such as B-type natriuretic peptide, C-reactive protein and cardiac troponins as well as novel biomarkers reflecting biological pathways of disease. He was the lead author of the Z phase of the A to Z trial, an international trial investigating different cholesterol lowering strategies in patients with acute coronary syndromes. He graduated from Harvard Medical School and completed an Internal Medicine Residency at UT Southwestern Medical Center, where he also served as Chief Medical Resident. He completed a fellowship in Cardiovascular Medicine and served on the faculty at the Brigham and Women's Hospital before returning to UT Southwestern Medical School. He has served on multiple committees of the AHA and ACC and is on the editorial board of the Journal of the American College of Cardiology, the American Journal of Cardiology and the American Heart Journal. He has mentored >25 post-doctoral research trainees and has authored or coauthored over 250 manuscripts or book chapters and won several teaching awards.