Jemima A. Frimpong has a broad background in health services research and organizational behavior, with expertise in research areas, including the adoption and sustainability of evidence-based practices, performance improvement and outcomes research. Her research focuses on understanding barriers and facilitators of HIV and hepatitis C (HCV) testing and treatment. The overarching goal of her research is the development, implementation, and evaluation of program and patient level interventions to increase HIV testing, linkage to care, and retention in care. Frimpong's studies, which have been published in the American Journal of Public Health, have examined organizational-level determinants of the availability of HCV testing services, and missed opportunities for HCV testing. Her ongoing studies focus on developing interventions that promote the integration of services and linkage to care for HIV and HCV co-infected persons. Her research combines principles of organizational behavior and health services research, as well as quantitative and qualitative research methodologies.