The impact of the Patient Protection and Affordable Care Act on the pediatric health care landscape includes expanded health insurance coverage and health care delivery improvements by increasing implementation of patient-centered medical homes and accountable care organizations. These offer opportunities for pharmacists to assume responsibility for the medication-related needs of pediatric patients through pharmacotherapy selection, medication therapy management performance, and medication reconciliation at each transition of care. Medically complex children with at least 2 chronic disease states may be the target population. Studies demonstrating the positive outcomes and cost-effectiveness of pharmacists in pediatric ambulatory care settings are needed.