Health & Medicine Policy Research Group launched its Behavioral Health-Primary Care Integration Learning Collaborative in 2015. The Learning Collaborative set up a Hospital Transitional Care Workgroup to focus on the potential to improve outcomes for individuals returning to the community after inpatient behavioral health hospital admissions. After many in-depth discussions, the Workgroup began collecting data on hospital transitions. This data collection project concentrated attention on the processes of transitional care, where they breakdown, and how they may be improved. This paper summarizes the Workgroup’s conclusions.