University of California, Davis

Professor Emeritus at University of California, Davis

The Wharton School

Professor of Medicine at The Wharton School

Haas School of Business

Social Impact Fellow at Haas School of Business

Harris School of Public Policy

Assistant Director, Harris Writing Program at Harris School of Public Policy

Harvard Medical School

Clinical Fellow at Harvard Medical School

The Wharton School

Emeritus Professor of Management at The Wharton School

Johns Hopkins School of Advanced International Studies

Professor and Director Emeritus, Latin American Studies Program at Johns Hopkins School of Advanced International Studies

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Public Health Lecturer at Birmingham City University/Healthcare Management Lecturer & Module Leader at Arden University at -

Stanford Graduate School of Business

Rady School of Management