Dr. Han is an Associate Professor with the Department of Emergency Medicine at Vanderbilt University Medical Center. He completed his emergency medicine residency at the University of Cincinnati and also served as chief resident. He completed a research fellowship and obtained a Masters in Clinical Epidemiology. In addition to his clinical responsibilities in the emergency department, Dr. Han has been very active in patient-oriented research. He has over 80 peer-reviewed publications, book chapters, and reviews in the areas of geriatric medicine, cardiology, and emergency department overcrowding. His research focus is on delirium and investigating how acute illness affects cognitive aging. He has developed validated several brief delirium assessments for the emergency department setting and examined how delirium in the ED affects long-term outcomes. Dr. Han was most recently awarded a National Institute on Aging R01 and R21, and a National Health, Lung, Blood Institute R56. His grants are focused on reducing the burden of delirium and improving long-term cognitive outcomes in acutely ill patients. Within Vanderbilt University Medical Center, he is core faculty of the Critical Illness, Brain Dysfunction, and Survivorship (CIBS) Center, Center for Emergency Research and Innovation (CERI), Center for Quality Aging (CQA), and Center for Health Services Research. He is also part of the Geriatric Research, Education, and Clinical Care (GRECC) in the Tennessee Valley Health Care System. He also serves as a Research Committee member of the American Delirium Society and runs the www.eddelirium.org website. He is married to Amanda and they have three children, Jackson, Elise, and Abigail. Outside of work, he enjoys spending time with his family, watching his kids play soccer and perform gymnastics, grilling on the Big Green Egg, and rooting for the NY Giants.