Oregon Health Sciences University (OHSU) and Portland State University (PSU) School of Public Health

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Seth O’Neal

Associate Professor

Seth O’Neal is an Associate Professor of Epidemiology in the School of Public Health. He also holds a visiting faculty position at Universidad Peruana Cayetano Heredia in Lima, Peru, and is co-director of the university’s Center for Global Health in Tumbes, Peru.

O’Neal is engaged in research to develop cost-effective and sustainable control interventions for neglected tropical infections in resource-limited settings.…

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Ryan Olson

Professor

Dr. Ryan Olson has a faculty appointment in the OHSU-PSU School of Public Health as a Professor in the Environmental Systems & Human Health program. In this role his work includes teaching courses and collaborating on research with SPH primary faculty members.

In addition to his commitments to the OHSU-PSU School of Public Health (SPH), Dr.…

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Doris Onnis

Adjunct Instructor

Doris Onnis is a clinical instructor in the School of Public Health’s Lactation Education Program.

Maternal-child health has been the focus of Onnis’ career. She has worked as a registered nurse for more than 35 years, working in neonatal intensive care, postpartum care and community health, and helped to develop an outpatient postpartum and lactation program for Providence St.…