Theresa Cullen is currently the Public Health Director of Pima County, Arizona. She has developed a strategic approach to transformational health status change with a goal of health equity through supporting a learning public health system model based on data and action. She continues to work closely with Tribal, federal, state and local partners to ensure that community needs are integrated into planning with a goal of health justice. Dr. Cullen, RADM (retired) USPHS, began her family medicine clinical career with Indian Health Service (IHS) and worked in leadership positions for 25 years with American Indian/Alaska Native communities with a goal of improving health status through innovation and data informatics. Dr. Cullen worked as the Chief Medical Information Officer for the Veterans Health Administration from 2012-2015 and Associate Director of Global Health Informatics at the Regenstrief Institute. She has been honored with multiple local, state and national awards including the USPHS Distinguished Service Medal, the University of Arizona Medical College Alumni Award, and the AMIA Don Detmer Award for informatics health policy contributions.