The current models of clinical collaboration between physicians and psychologists/social workers in the pediatric outpatient primary care setting fall along a continuum of integration of services and philosophies of care. Domains of integration include physical office location, the targeted patient population, the level of professional adaptation to other professions’ model of training, and the influence of current models of reimbursement. Included here is an analysis of those models based on each continuum of integration. Each model is discussed with respect to where it falls on each continuum.