Dr. Walter Winn Chatham is a professor of internal medicine and rheumatology in the Kirk Kerkorian School of Medicine at UNLV Department of Internal Medicine. He completed his BSc studies in biomedical engineering at Duke University in 1976, and his Medical Doctorate studies at Vanderbilt University School of Medicine in 1980. He has received America’s Top Doctors and Best Doctors in America recognition for over 20 years, and in 2018, he was the recipient of the American College of Rheumatology Distinguished Clinician Scholar Award. He has published over 80 peer-reviewed publications and has authored over 12 textbook chapters on topics that include traditional-disease modifying anti-rheumatic drugs, biologic response modifiers, macrophage activation syndromes in the setting of rheumatic disease, vasculitis occurring in the setting of microbial infections, and management of autoimmune disorders in the setting of infections, and immune deficiency. His research interests include systemic lupus erythematosus, immunodeficiency-associated autoimmunity, and macrophage activation syndrome in the setting of autoimmune, and viral disorders.