Katherine Garrett is a lecturer in Health Policy and Management at the Mailman School of Public Health, Columbia University. She is associate director of the department’s Health System Simulation, a faculty adviser in its consulting practice initiative and has taught classes on the relationship of organizational strategy and quality management in the department’s Master of Healthcare Administration programs.

Garrett is also a consultant on performance measurement and improvement for not-for-profit organizations and a writer on health care policy and quality. She has over 30 years of experience in the healthcare industry, including acting as program designer and lead strategist for the 22-facility New York City Health and Hospitals Corporation's Quality Management initiative. Garrett’s consulting clients have included the Robert Wood Johnson Foundation, the Fire Department of the City of New York and the American Academy of Pediatrics.

Garrett has taught in executive education programs of Columbia Business School, the University of Reykjavik, Iceland and the Scuola Sant’Anna in Pisa, Italy. She has an MBA in finance with distinction from New York University and an AB cum laude from Harvard. As a volunteer, she has been a member of the Quality Assurance and Performance Improvement Committee of the board of directors of LiveOnNY (formerly the New York Organ Donor Network) and assistant alumni/ae area coordinator for the Center for Public Interest Careers at Harvard College.