Margaret E. Kruk is Professor of Health Systems at the Harvard T.H. Chan School of Public Health. Dr. Kruk’s research generates evidence on how health systems can improve health in low-income and middle-income countries. She develops novel measures of health system quality and studies the links between quality and population demand for health care, health outcomes, and confidence in the system. She uses novel implementation science methods to evaluate large-scale health system reforms. She currently collaborates with colleagues in Ethiopia, Kenya, Nepal, and India. Dr. Kruk recently chaired the Lancet Global Health Commission on High Quality Health Systems in the SDG Era (HQSS Commission), a global initiative to redefine and measure quality in the health systems of lower-income countries. Previously, Dr. Kruk was Associate Professor of Health Policy and Management and Director of the Better Health Systems Initiative at Columbia University. She has held posts at the United Nations Development Program and McKinsey and Company and practiced medicine in northern Ontario, Canada. She holds an MD degree from McMaster University and an MPH from Harvard University.