There is scant research regarding the transition from pediatric to adult eating disorder programs. This study aims to increase understanding of the factors that impede or facilitate successful service transition for individuals with anorexia nervosa moving from pediatric to adult eating disorder programs. Participants included service providers representing pediatric and adult eating disorder programs, in addition to community treatment providers in a large city. The following themes were identified: a) readiness, not age, should determine service transition; and b) implementation of interventions for facilitating transition from pediatric to adult eating disorder programs including appropriate medical follow-up. These findings delineate various factors that may help facilitate or interrupt a seamless and coordinated transition from pediatric to adult eating disorder programs.