Delivering Health Care in America, Fourth Edition
A Systems Approach

Leiyu Shi, DrPH, MBA, MPA-Professor, Johns Hopkins Bloomberg School of Public Health, Co-Director, Johns Hopkins Primary Care Policy Center for the Underserved

Dr. Leiyu Shi is an Associate Professor in the Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, and Co-Director of Johns Hopkins Primary Care Policy Center for the Underserved Populations. Dr. Shi's research focuses on primary care, health disparities, and vulnerable populations. He has conducted extensive studies about the association between primary care and health outcomes, particularly on the role of primary care in mediating the adverse impact of income inequality on health outcomes. Dr. Shi is also well known for his extensive research on the nation's vulnerable populations, in particular community health centers that serve vulnerable populations, including their sustainability, provider recruitment and retention experiences, financial performance, experience under managed care, and quality of care. Dr. Shi is the author of three textbooks and nearly 100 journal articles.

Douglas A. Singh, PhD, MBA-Associate Professor of Management, School of Business and Economics, Indiana University at South Bend

Dr. Singh teaches graduate and undergraduate courses in health care delivery, policy, finance, and management in the School of Business and Economics and in the Department of Political Science at Indiana University-South Bend. He has authored/coauthored four books and has published in peer-reviewed journals. Before pursuing an academic career, he spent over 15 years in the long-term care industry and held positions of administrator, regional manager, vice president, and consultant. He was awarded the long-term care research award by the Foundation of American College of Health Care Administrators in 1995.