Based on a survey of state officials, the National Academy for State Health Policy (NASHP) identified 31 states with active initiatives to promote the patient-centered medical home as a way to deliver high-quality care for beneficiaries of Medicaid and the Children's Health Insurance Program. Most state officials are now seeking guidance on implementing the concept effectively and efficiently. In this project, NASHP will help eight states in their efforts to define the components of a medical home, develop criteria for recognizing clinics or physician practices as medical homes, revise primary care reimbursement policy, support physician office redesign, and monitor success. This work will be closely coordinated with the Qualis Health project to transform safety-net clinics into medical homes to ensure that promising policy approaches are shared with states participating in that initiative.