Conclusions
The findings of this nonrandomized controlled trial suggest that an intervention where Medicaid ACO members at a safety-net hospital received care from pharmacy liaison–patient navigators was not associated with a reduction in inpatient hospital admissions and ED visits relative to usual pharmacy care (pharmacy liaison and clinic-based navigator). Future studies might focus on preventing high levels of health care utilization and should identify which patients may benefit most from patient navigation to reduce health care utilization and in which settings such interventions should be delivered.