William Tierney, M.D., is a senior lecturer at the Steve Hicks School of Social Work and a professor in the Department of Population Health at Dell Medical School. He is internationally recognized for his research in biomedical informatics, health services and clinical database epidemiology. He was the founding chair of Dell Medical School’s Department of Population Health, which is playing a leading role in the school’s mission to help make Austin a model healthy city. The Department of Population Health focuses on community engagement, health equity, primary care, occupational health, global health and health information and data analytic sciences.

Tierney is a member of the National Academy of Medicine, a master of the American College of Physicians and fellow of the Royal College of Physician–London and the International Academy of Health Sciences Informatics.