The president of the Primary Care Collaborative and IBM's global director of health care transformation describes the challenges left for creating the patient-centered medical home model. Paul Grundy, M.D., president of the Primary Care Collaborative and IBM's global director of health care transformation, examines progress and challenges remaining on the patient-centered medical home model. He's optimistic both political parties will support this effort to lower prices and boost quality.Interviewed by Bob KehoeWhere are we in the evolution of the patient-centered primary care delivery model?GRUNDY: It has gained a lot of traction and I'm very optimistic. The patient-centered medical home moves delivery away from an episode of care and toward managing a population, with the medical home or primary care practice being the system integrator. The federal government as a health care buyer is moving in this direction. The Office of Personnel Management is moving in this direction. WellPoint and UnitedHealth Group are moving in this direction. It's become the standard of care in the Department of Defense and the Department of Veterans Affairs...