This article proposes that pediatric medicine and school psychology are complementary fields. Five professional beliefs are reviewed: (a) the importance of classification, (b) a preference for evidence-based interventions, (c) an endorsement of advocacy in public policy, (d) the importance of working with the whole child including his/her parents, and (e) an assertion of team leadership. Each belief is discussed as a core value of pediatric medicine and considered for points of connection with school psychology. Some of these beliefs are widely shared by school psychologists, others are rejected because of historical and situational factors, and all warrant consideration in light of school psychology's continuing evolution.