Evidence defining high-quality stroke care has improved dramatically in the past 20 years; however, the gap between evidence and practice persists in stroke prevention, treatment, and rehabilitation.1 Although clinical trials have been instrumental in advancing the science supporting evidence- based guidelines, research is needed to identify gaps and factors contributing to gaps in care and outcomes and to develop strategies that promote uptake of evidence-based treatment and services for stroke patients. This article discusses health services research (HSR) as a multidisciplinary field encompassing outcomes research, implementation science, and financial evaluations that can address critical evidence, practice and policy gaps in stroke care
