Established in 2018, the Department of Population Health Science is part of the College of Osteopathic Medicine of the Pacific and the College of Osteopathic Medicine of the Pacific-Northwest. Our mission is to help prepare health care providers as leaders dedicated to exploring the contextual factors that influence the health and wellbeing of populations, and to help design and implement policies and systems that enhance longevity and quality of life. The department is home to a diverse array of faculty spanning four Sections that encompass Health and Social Behavior, Community Health, Global Health, and Health Policy and Management.
The Department of Population Health Science and Claremont Graduate University’s (CGU) School of Community and Global Health have designed the DO/MPH dual enrollment program at CGU for WesternU/COMP students who wish to acquire a deeper understanding of the history, organization, philosophy, and theories that undergird public health practice and research. The MPH degree also provides an enhanced appreciation for the myriad social determinants of health, the importance of community-based health promotion interventions and program planning, as well as complexities of health services delivery. Learn more.

Section of Health and Social Behavior
Faculty explore how the social environment and contexts in which people live. Faculty examine drivers of “why people do what they do” at multiple levels. Areas of emphasis include the multiple social determinants of health, the social ecological model, epigenetics, and community-based participatory research.

Section of Community Health
Faculty explore developing and implementing effective approaches to health promotion and disease prevention at the community level in rural and urban regions. Areas of emphasis include preventing chronic diseases and promoting healthy women, infants, and children. Faculty work in partnership with many community-based organizations, and with state and city health departments, to develop programs that span multiple sectors.

Section of Global Health
Faculty embody the principles of population health on a global scale. A OneHealth philosophy leverages education, research, and service to cultivate 21st century leaders, improve overall health outcomes, and promote health equity for vulnerable populations around the world. 

Section of Health Policy and Management
Faculty focus on management, leadership, and administration of health care systems, both public and private. This includes policy pertaining to insurance and reimbursement, access to care and health equity, and the financing of healthcare. Education aims to promote understanding of how leadership of health care systems and the government at the state and federal levels influence the delivery of health care.