Dr. Kathryn (Kathy) McDonald is the Bloomberg Distinguished Professor of Health Systems, Quality and Safety at Johns Hopkins University. She holds primary appointments in the School of Nursing and the School of Medicine (General Internal Medicine), as well as academic affiliations in business, public health and engineering. She is Co-Director of the Armstrong Institute Center for Diagnostic Excellence at the Armstrong Institute for Patient Safety and Quality, and recently served as Interim Director of the Center on Innovative Care for Aging. Previously, at Stanford University, she was the founding executive director of the Center for Primary Care and Outcomes Research and executive director of the Center for Health Policy. Her interdisciplinary scholarship aims to improve health care delivery, and relies on close partnerships with patients, frontline clinical teams, and delivery system leaders. Influential research products include over 100 evidence-based national quality, prevention and safety measures for improving care and reducing inequities. She has also authored seminal publications on coordination of care, patient safety practices and quality improvement strategies. She has served as president of the Society for Medical Decision Making, advisory chair for the Relational Coordination Collaborative, and founding chair of the Patient Engagement Committee of the Society to Improve Diagnosis in Medicine. She has also served as a member of National Academy of Medicine Committees — one on Child Health and Healthcare Measures, and another on Improving Diagnosis and Reducing Diagnostic Errors – that grappled with challenges of measuring and improving quality, equity and health.