Patient-safety expert Kathryn McDonald explores what makes for safe, affordable, and high-quality health care delivery systems and the factors that prevent health organizations from achieving that standard of care. Her research relies on close partnerships with frontline teams, including patients and families. As the Bloomberg Distinguished Professor of Health Systems, Quality and Safety, Dr. McDonald holds primary appointments in the Schools of Medicine and Nursing and joint appointments in the Carey Business School and Bloomberg School of Public Health. Dr. McDonald also has affiliations with the Malone Center for Engineering in Healthcare, the Armstrong Institute for Patient Safety and Quality, and Hopkins Business of Health Initiative. Before joining Johns Hopkins, Dr. McDonald was founding executive director of the Center for Primary Care and Outcomes Research at Stanford University’s School of Medicine and executive director of Stanford’s Center for Health Policy.