Prior research has found that racial/ethnic minorities may be at higher risk for adverse patient safety outcomes. This study evaluated racial disparities in self-reported adverse events based on cross-sectional survey data collected as part of a national, prospective cohort evaluating stroke mortality. Findings show that Black participants were significantly more likely to report a preventable adverse event attributable to poor care coordination (e.g., drug-drug interaction, emergency department visitor, or hospitalization) compared to White participants.