Within pairs in pediatric residency programs matched on size (a proxy for burnout), clusters of interns in each program will be randomized to experience either the mindfulness curriculum over a 6-month period (intervention) or receive the usual educational curriculum (control). During a 15-month study period, burnout, mindfulness and empathy will be assessed using validated measures at baseline, 6- and 15-month follow-up. The impact of the intervention will be determined by comparing physician burnout, empathy and mindfulness scores between interns in the intervention and control groups. This methodologically rigorous multi-center cluster RCT will determine if implementing an innovative 6-month mindfulness curriculum reduces pediatric interns' burnout and improves empathy and mindfulness practice.