Lisa Hirschhorn, MD, MPH is a Senior Advisor for the Primary Health Care program at Ariadne Labs. She currently serves as a Professor of Medical Social Sciences at Northwestern University in the Feinberg School of Medicine and Affiliate Faculty at Ariadne Labs. Prior to her appointment at Northwestern, Dr. Hirschhorn was the director of the Implementation and Improvement Science Platform at Ariadne Labs and Associate Professor of Medicine at the Harvard Medical School Department of Global Health and Social Medicine. In this role, Dr. Hirschhorn helped to scale-up and expand the implementation of the effective interventions developed by the programmatic research at Ariadne Labs. Trained in infectious disease and public health, she has worked for three decades to study and improve the effectiveness and quality of care in the US and LMICs in HIV, primary care, maternal and child health and NCDs. Her work has also focused on developing capacity and more effective methods for monitoring and evaluation to improve access, utilization, equity and outcomes of care in the United States and internationally. Most recently she was co-PI on the Africa Health Initiative health systems strengthening project in Rwanda designed to strengthen and study more effective primary health care delivery in two rural districts. She is widely published in the areas of implementation and improvement science.