
A Life Course Approach to Aging and Opioid Use, Innovation in Aging Special Issue
Includes a Live Web Event on 10/30/2025 at 12:00 PM (EDT)
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This webinar will feature studies in the newly published special issue of Innovation in Aging, “A Life Course Approach to Aging and Opioid Use.” Moderated by guest editors, Marcia G. Ory, PhD, MPH, FGSA, Ashley Ritter, PhD, MSHP, APRN, and Sarah Gebauer, MD, MSPH, FAAFP.
This webinar will share a collection of recent findings published in “A Life Course Approach to Aging and Opioid Use,” a special issue of Innovation in Aging. The works highlight novel themes, conceptualizations, research questions, and methods in advancing knowledge on the interconnections between aging and opioid use. They also offer actionable solutions to improve personalized care delivery to meet intersecting needs for older adults at risk of, or living with, opioid use disorder.
Sarah Gebauer, MD, MSPH (Moderator)
Associate Professor, Saint Louis University
Physician, SSM Health
Dr. Gebauer is a family physician and translational epidemiologist in Saint Louis University-School of Medicine's Department of Family & Community Medicine. Her research is focused on the integration of geospatial information science and administrative health record data with special interest in chronic pain and prescription opioid use. She focuses on the impact of place on health outcomes, such as communities and neighborhoods. Her medical practice is located in an FQHC look a like clinic, providing primary care to the underserved of St. Louis County.
Marcia Ory, PhD, MPH (Moderator)
Regents and Distinguished Professor
Texas A&M University
Marcia G. Ory, Ph.D., M.P.H., is a Regents and Distinguished Professor in the Department of Environmental and Occupational Health, Texas A&M School of Public Health (SPH) in College Station, Texas. Working with interdisciplinary teams in the TAMU Board of Regents Center for Community Health and Aging (CCHA), her primary goal is to reframe healthy aging as the new normal through innovative research, education, and service. Dr. Ory is an international leader in translating research into practice through investigations of behavioral, social, environmental, policy, and/or technological solutions to enhance health and quality of life for all. She has a long-standing commitment to aging and public health research, with a particular interest in dementia research that focuses on both individuals living with dementia and their care partners.
Ashley Ritter, PhD, MSHP, APRN (Moderator)
Assistant Professor
Hunter-Bellevue School of Nursing, Hunter College, City University of New York
Ashley Z. Ritter, PhD, MSHP, APRN is a nurse practitioner, researcher, and Assistant Professor at Hunter-Bellevue School of Nursing whose work centers on improving health outcomes for older adults with complex medical and social needs. Clinically trained in gerontology and palliative care, she has provided direct care in hospital, post-acute and community-based settings. Dr. Ritter’s research examines opioid use disorder (OUD) in aging populations, with multidisciplinary projects funded by the National Institute on Drug Abuse, the CDC, and the Commonwealth Fund. Her studies focus on care transitions, disparities in access to OUD treatment, and integrating harm reduction into the continuum of aging services. Recognized for both scholarly and public engagement, Dr. Ritter is a Fellow of the College of Physicians of Philadelphia and a founding member of Those Nerdy Girls, advancing evidence-based health communication.

Joy Alonzo, ME, PharmD
Megan O’Grady, PhD
Associate Professor
University of Connecticut School of Medicine
Dr. Megan O’Grady is a social psychologist and health services researcher interested in using implementation science to improve the system of prevention and treatment for substance use disorder. She is an Associate Professor in the Department of Public Health Sciences at the University of Connecticut School of Medicine and director of the Center for Prevention, Evaluation, and Statistics at UConn Health. Dr. O’Grady is co-investigator on 4 NIH-funded projects and a PCORI-funded study on substance use treatment services, and evaluator on several SAMHSA- and State-funded projects in partnership with New York State and the State of Connecticut. She received her PhD from Colorado State University and completed a post-doctoral research fellowship at the NIH-funded University of Connecticut School of Medicine Alcohol Research Center. She was formerly an Associate Vice President of Health Services Research at Partnership to End Addiction.
Marissa K. Mackiewicz, PhD, RN, MSN, CNS
Assistant Professor, University of Central Florida
Affiliate, Virginia Commonwealth University
Marissa “Mari” Mackiewicz is an assistant professor at UCF’s College of Nursing and a nurse scientist whose work focuses on ensuring all older adults have access to healthcare. Her research interests include substance use disorders and unmet oral health needs in older adult populations. Prior to joining UCF, Mackiewicz held post-doctoral positions at the University of Chicago and Virginia Commonwealth University. Over the past seven years, she has led various research projects aimed at understanding and addressing the health-related needs of older adults. Her work strives to inform healthcare professionals, students, and community members about the unique needs of older adults with mental and behavioral health issues to decrease stigma, promote empathy, and ultimately improve patient care.
Fred Rottnek, MD
Program Director, Addiction Medicine Fellowship, SSM Health
Director of Community Medicine, Saint Louis University
Dr. Rottnek is a Professor and the Director of Community Medicine at SSM Health/Saint Louis University School of Medicine and the Program Director of the SSM Health/Saint Louis University Addiction Medicine Fellowship. He is a graduate of the Saint Louis University School of Medicine and the Master of Arts in Health Care Mission Program at Aquinas Institute of Theology. His clinical practices currently include addiction medicine and correctional healthcare. He teaches in the School of Medicine and the School of Law. Board-Certified in Family Medicine and Addiction Medicine, he is the Chief Medical Officer of the Assisted Recovery Centers of American (ARCA) and Medical Director of Juvenile Detention of the City of St. Louis.
Pamela Teaster, PhD, MS, MA, NREMT
Professor and Director
Virginia Tech Center for Gerontology
Pamela B. Teaster is a Professor and the Director of the Center for Gerontology and the Associate Department Head of the Department of Human Development and Family Science at Virginia Tech. She was a 2023-2025 Health and Aging Policy Fellow, Fellow of the Gerontological Society of America, and Fellow of the Association for Gerontology in Higher Education. She received the Isabella Horton Grant Award for Guardianship (National College of Probate Judges), the Rosalie Wolf Award for Research on Elder Abuse (NAPSA), the Outstanding Affiliate Member Award (Kentucky Guardianship Association), and Distinguished Educator Award (Kentucky Association for Gerontology). Areas of scholarship include the abuse of vulnerable adults (e.g., sexual abuse; financial and opioid exploitation, guardianship) surrogate decision making, end-of-life decision-making, ethical treatment of older adults, and public policy and public affairs). She has published over 250 scholarly and translational articles, reports, and book chapters and is the editor/author of 7 books.
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