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Dr. Elena Andresen has a faculty appointment in the OHSU-PSU School of Public Health as a Professor in the Epidemiology programs. In this role, her work includes mentoring faculty, providing student field experience sites, and collaborating with faculty on scholarly products.
Dr. Andresen was appointed interim provost for OHSU on October 1, 2016, and appointed Executive Vice President and Provost on June 1, 2017. She previously served as interim dean of the School of Public Health, from May 2014 to September 2016, and continues as professor of epidemiology at the School of Public Health. Andresen was the Director and PI of the CDC-funded Oregon Office on Disability and Health at OHSU from January 2016 through December 2018. The office has a long history at OHSU of working on behalf of Oregonians with disability and their families.
Dr. Andresen joined OHSU in 2011 after serving as professor and the founding chair of the Department of Epidemiology and Biostatistics at the University of Florida College of Public Health and Health Professions. She is an experienced epidemiologist who received additional training in health services research. Her recent work has focused on aging and the public health outcomes of disability across the lifespan, along with methods and measures for health services outcomes research. Dr. Andresen has taught numerous undergraduate and graduate public health (primarily epidemiology) courses, and she currently teaches in the OHSU Interprofessional Initiative Foundations course for health professions students.
B.A., University of Washington, 1977, Interdisciplinary
M.A., University of Washington, 1979 History
Ph.D., University of Washington, 1991 Epidemiology
Awards and Honors
- 2011, Allan Meyers Award, American Public Health Association Disability Section
- 2010, Member Delta Omega Honorary Society in Public Health (Beta Upsilon Chapter)
- 2007, Fellow of the American College of Epidemiology
- 2000, Honorary Member, Pi Theta Epsilon, OT Honor Society (Beta Gamma Chapter)
- 1995, Alumni Award for Excellence in Graduate Education, University of Rochester
- 1990, Student Workshop, Society for Epidemiologic Research
- 1989 Secretary’s Prize for Innovations in Health Promotion & Disease Prevention, DHHS
- 1988, Matrix Table Award for Campus Achievement, Women in Communications, Inc.
Dr. Fortmann has an affiliate appointment in the OHSU-PSU School of Public Health as a Professor in the Epidemiology programs. In this role, Professor Fortmann’s work includes collaborating on research with SPH Primary Faculty members, mentoring junior faculty, and facilitate practice experience opportunities with SPH students.
M.D., University of California, San Francisco, 1974
A.B., Stanford University, 1970
B. Alex Foster has a secondary faculty appointment in the OHSU-PSU School of Public Health as an Assistant Professor in the Epidemiology programs (MPH and PhD). In this role, Professor Foster’s work includes collaborating other SPH primary faculty members in Epidemiology and mentoring or advising EPI students.
Dr. Foster’s primary faculty appointment is in the OSHU School of Medicine; Dermatology Department. B. Alex Foster, MD, MPH is a pediatrician-public health scientist. He attended medical and graduate school in Oregon, completed residency training in New York City, and then started his faculty career in Texas before returning to Oregon.
His research interests focus on addressing obesity in childhood, particularly for low-income populations at higher risk of continued obesity and the subsequent associated complications. Dr. Foster’s research work has focused on understanding what assets communities have and building off of those, and he has also examined using parent mentors as an intervention model to support behavioral change.
B.S., University of California, San Diego, 2003
M.P.H., Oregon Health & Science University, 2008
M.D., Oregon Health & Science University, 2009
Willi Horner-Johnson is an associate professor in the School of Public Health and in OHSU’s Institute on Development and Disability. She studies health and health care disparities impacting adults with disabilities and has contributed to a growing body of evidence indicating substandard receipt of some types of preventive care and elevated levels of unmet health care needs in the disability population.
Horner-Johnson has a particular interest in disparities experienced by people with disabilities who also belong to other marginalized groups. In 2014, she guest edited a special issue of Medical Care on health care disparities at the intersection of disability, race and ethnicity.
Much of her current research focuses on reproductive health of women with disabilities, including contraception use and preferences and pregnancy occurrence and outcomes.
Horner-Johnson co-founded the Disability Section of the Oregon Public Health Association and is currently chair of the Disability Section of the American Public Health Association.
B.A., Oberlin College, 1995
Ph.D., University of Illinois at Chicago, 2002
Awards and Honors
2009, APHA Disability Section New Investigator Award
- K12 HS019456 (Guise, JM) 09/01/2014 – 07/31/2017 AHRQ Oregon Patient Centered Outcomes Research K12 Program, Role: K12 Scholar
- R21HD081309 (Horner-Johnson, W) 07/25/2014 – 06/30/2017 , NIH/NICHD, Prevalence and Outcomes of Pregnancy in Women with Disabilities, Role: Principal Investigator
Dr. Todd Korthuis has a secondary faculty appointment in the OHSU-PSU School of Public Health as a Professor in the Epidemiology programs. In this role his work includes mentoring students and collaborating on research with primary faculty.
In addition to his work in the OHSU-PSU School of Public Health (SPH), he serves as Program Director for the OHSU Addiction Medicine Fellowship and Co-Director of the Oregon Addiction Education and Prevention Initiative that provides training and support for rural primary care providers in pharmacotherapy for substance use disorders.
Dr. Korthuis is a general internist, addiction medicine specialist, and clinician scientist. He completed a health services research fellowship and MPH at University of California Los Angeles and began his clinical career treating patients living with HIV and became board-certified in addiction medicine in 2010. His research focuses on improving integration of addiction treatment in diverse health care settings, including primary care, HIV clinic, and rural settings.
M.P.H., University of California Los Angeles, 2002
M.D., University of Health Science/Chicago Medical School, 1991
B.S., Azusa Pacific University, 1986
Awards and Honors
2012-2013, Fulbright Scholar award to study integration of HIV and addiction care in Vietnam
2008, Lawrence S. Linn Award for research that improves the lives of people living with HIV
- PI for four multi-site, NIH-funded opioid use disorder trials:
- CTN-0067 CHOICES trial of extended-release naltrexone in North American HIV clinics
- BRAVO trial of buprenorphine for opioid use disorder in Vietnam HIV clinics
- Oregon HOPE study to improve engagement in opioid use disorder treatment in rural Oregon counties
- PROUD-R2 trial to support retention in people with opioid use disorder in rural Oregon, Ohio, and Kentucky
- Co-PI for the Western States Node of the National Institute of Drug Abuse Clinical Trials Network that conducts clinical trials of opioid, methamphetamine, and cocaine use disorders
- Served as national lead investigator for CTN-0055 and CTN-0067
Dr. Messer holds a secondary appointment in the OHSU-PSU School of Public Health as an Assistant Professor in the Epidemiology programs. In this role, Professor Messer’s work includes mentoring or advising SPH students and collaborating on research with SPH Primary Faculty members.
Dr. Messer’s primary faculty appointment is with the Department of Molecular Microbiology and Immunology in the OHSU Department of Medicine’s Division of Infectious Diseases. Dengue virus is the primary focus of his lab work, along with the other flaviviruses like Yellow fever, West Nile, and Zika, is a quintessential public health virus. His current work looks at the interplay between dengue and Zika virus genetics and human host immunity with the goal to seek insights into how changes in virus genetics lead to variable immunity in the human hosts and ask these questions through molecular studies of the viruses and serologic and immune cell studies in human cohorts.
M.D., University of North Carolina at Chapel Hill, 2006
Ph.D., University of North Carolina at Chapel Hill, 2003
B.A., University of Oregon, 1989
Seth O’Neal is an Assistant 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. His primary focus is on Taenia solium, the pork tapeworm, which is an important cause of preventable epilepsy across much of Latin America, Asia and sub-Saharan Africa. The parasite also perpetuates poverty in these regions by inflicting financial losses on small landowners due to contaminated pork. Through National Institutes of Health and foundation funding, O’Neal conducts community trials of control interventions, as well as clinical and epidemiological studies. His research explores the biological, environmental, social and cultural factors that drive transmission of the parasite, as these affect control interventions.
B.A., Northland College, 1994
M.D., OHSU, 2006
M.P.H., OHSU, 2010
Preventive Medicine Residency, OHSU, 2010
Awards and Honors
- 2019, OHSU-PSU School of Public Health Faculty Award for Excellence in Teaching & Mentorship
- 2005, Fogarty-Ellison Fellowship in Global Health and Clinical Research, National Institutes of Health
- 2010, Fogarty Fellowship in International Clinical Research, National Institutes of Health
- R01NS080645 (O’NEAL, SETH) Dec 15, 2013 – Nov 30, 2018 NIH/NINDS Optimizing ring-screening strategy for control of Taenia solium infection Role: Principal investigator
- Swiss Foundation (O’NEAL, SETH) May 1, 2013 – June 30, 2015 Community-based control of cysticercosis Role: Principal investigator
- R21AI119439 (O’NEAL, SETH) July 1, 2015 – June 30, 2017 NIH/NIAID Evaluating corralling and the effect of dung beetles on transmission and control of cysticercosis Role: Principal investigator
- R21NS069275 (O’NEAL, SETH) Aug 15, 2010 – July 1, 2013 Targeted screening for Taenia solium tapeworms Role: Principal investigator
- KL2RR024141 (MORRIS, CYNTHIA) Dec 15, 2011 – Dec 4, 2013 Taenia solium infection among refugees from Burma Role: Trainee
Dr. Quiñones has a secondary appointment in the OHSU-PSU School of Public Health as an Associate Professor in the Epidemiology graduate level programs (MPH and PhD). In this role, Professor Quiñones’ work includes collaborating with other SPH Epidemiology faculty members, and mentoring or supervising Epidemiology students.
Dr. Quiñones aims to understand disparities in health stemming from differential access to resources for disadvantaged populations and subsequent effects on health and well-being through life.She has an OHSU primary faculty appointment in the OHSU School of Medicine; Department of Family Medicine. Her work addresses four main areas: age-related changes in health; chronic disease epidemiology; racial and ethnic disparities in health; and health care delivery systems designed to improve the management of chronic conditions for vulnerable adults.
B.A., University of Florida, 1998
M.S., University of Minnesota, 2000
Ph.D., University of Michigan, 2010
Awards and Honors
- 2016, Finalist, OHSU Faculty Senate Excellence Award
- 2016, NIH Health Disparities Loan Repayment Program award
- 2014, Chair’s Award for Excellence in Research, Department of Public Health & Preventive Medicine, Oregon Health & Science University
- 2013, American Diabetes Association Thomas R. Lee Award
- 7-13-CD-08, 07/01/2013 – 06/30/2018 , Complex Chronic Care Needs of Older Minorities with Diabetes Mellitus Funder: American Diabetes Association, Role: PI
- R03AG048852-01, 09/30/2014 – 05/31/2017, 3.0 calendar months NIH/NIA (Quiñones) $101,387 Inconsistencies in Chronic Disease Reports Over Time, Funder: NIH/NIA, Role: PI
- PCORI (DeVoe) 10/1/2015 — 09/30/2018 , Accelerating Data Value Across a National Community Health Center Network (ADVANCE) Phase II, Funder: Patient-Centered Outcomes Research Institute (PCORI), Role: Co-Investigator
Jonathan Snowden is an epidemiologist, an assistant professor in the School of Public Health and in OHSU’s Department of Obstetrics & Gynecology. He also is an associate editor for the national Patient-Centered Outcomes Research Institute.
Snowden’s research focuses on sexual and reproductive health disparities. He evaluates methods and concepts to improve causal inference from observational data, and his trans-disciplinary research sits at the intersection of population health science, clinical practice and health care policy.
Snowden aims to frame research questions that are relevant to the affected populations and that respect the circumstances of people’s lives, so that research results can promote optimal health in the real world. By more clearly defining variations in the continuum of “normal” healthy sexuality and reproduction, his research aims to preserve optimal health as well as prevent and treat disease.
A cross-cutting focus of his research is the clear communication of novel concepts and methodologies.
B.A., Stanford University, 2005
Ph.D., University of California, Berkeley, 2011