The document discusses the patient-centered medical home (PCMH) model for transforming the U.S. health system. It provides background on why the model is needed due to rising healthcare costs and issues with the current system. It describes the key components of the PCMH model including team-based and coordinated care, enhanced access, and a focus on quality and safety. The document also outlines the history and development of the PCMH model and provides examples of its implementation in different healthcare organizations and states. It discusses the role of the Patient-Centered Primary Care Collaborative in leading the transition to the PCMH model.