Marc Debay, M.D., M.P.H., Ph.D. is a Health Sciences Clinical Professor of Family Medicine for the University of California, Riverside School of Medicine.

Debay received his M.D. from the Université Libre de Bruxelles, Faculté de Médecine (Free University of Brussels), Belgium and a master’s and a Ph.D. in public health from The Johns Hopkins University Bloomberg School of Public Health. He completed residencies in family medicine at the Glendale Adventist Medical Center and in preventive medicine at Loma Linda University. He is board certified in both family medicine and preventive medicine.

Debay was previously an associate professor in the School of Medicine and in the School of Public Health at Loma Linda University and director of the Primary Care Physicians Services Project, a partnership between the San Bernardino County Department of Public Health and the Loma Linda Faculty Medical Group. He served as an attending physician in the departments of preventive medicine and family medicine and as a physician in the VA Loma Linda Healthcare System. He also focused on training physicians and other health professionals for primary care research and global health service.

His extensive international public health expertise includes reproductive, maternal and child health, HIV/AIDS and other infectious diseases, behavior change communication, and health systems strengthening. He has broad experience in program design, implementation, and evaluation at the community, district, national and international levels with a variety of government, academic and private organizations. He has served in more than 30 countries in Africa, Asia and the Middle East.

Among his many volunteer activities, he served as faculty advisor and supervisor to the Loma Linda University Street Medicine Outreach, a student-run volunteer medical group providing transitional care to the homeless of San Bernardino. He has also worked with a multitude of international aid organizations such as World Vision International and Doctors Without Borders.

He is a member of several professional organizations, including the American Medical Association, the American Academy of Family Physicians, and the American College of Preventive Medicine and the Society of Teachers of Family Medicine.

He is fluent in both English and French and also speaks Spanish.

His interests include comprehensive patient-centered primary care, program evaluation and quality improvement, and global health education of physicians and other health professionals.