To examine how systems can be configured to meet the needs of children and families as they struggle with disabilities and complex health and educational needs, the National Academies of Sciences, Engineering, and Medicine held a workshop in December 2015. The goal of the workshop was to highlight the main barriers and promising solutions for improving care and outcome of children with complex medical and educational needs. Workshop participants examined prevention, care, service coordination, and other topics relevant to children with disabilities and complex health and educational needs, along with their families and caregivers. More broadly, the workshop seeks actionable understanding on key research questions for enhancing the evidence base; promoting and sustaining the quality, accessibility, and use of relevant programs and services; and informing relevant policy development and implementation. By engaging in dialogue to connect the prevention, treatment, and implementation sciences with settings where children are seen and cared for, the forum seeks to improve the lives of children by improving the systems that affect those children and their families. This publications summarizes the presentations and discussions from the workshop.