The U.S. Department of Health and Human Services and the Centers for Medicare and Medicaid Services have invited states to apply to take part in the Multi-payer Advanced Primary Care Practice Demonstration, a patient-centered medical home project that will include all major payers in participating states or regions. The purpose of the demonstration is "to evaluate whether the advanced primary-care practice--when supported by Medicare, Medicaid, and private health plans--will (1) reduce unjustified variation in utilization and expenditures; (2) improve the safety, effectiveness, timeliness and efficiency of healthcare; (3) increase the ability of beneficiaries to participate in decisions concerning their care; (4) increase the availability and delivery of care that is consistent with evidence-based guidelines in historically underserved areas; and (5) reduce unjustified variation in utilization and expenditures under the Medicare program," says a Frequently Asked Question on the demonstration webpage. Up to six states may participate in the demo. Webpage