Elizabeth Needham Waddell, PhD, is associate professor of public health in the OHSU-Portland State University School of Public Health and OHSU School of Medicine, Section of Addiction Medicine. Waddell is a public health researcher who works closely with Oregon state agencies on multiple initiatives to improve health systems integration and to better understand the treatment needs of adults cycling through jail and prison. She is principal investigator on the U.S. Centers of Disease Control and Prevention pilot, “Reducing Risk of Overdose after Release from Incarceration,” which combined medications for addiction treatment with support from certified recovery mentors for women exiting Oregon prison. Nationally, she is one of six principal investigators on a 5-year clinical trial comparing extended-release buprenorphine vs. extended-release naltrexone. The project, Exit-CJS, is funded by the National Institute on Drug Abuse to assesses retention on treatment for opioid use disorder among criminal justice system-involved adults.