Since the inaugural National Accountable Care Organization Congress in October 2010, there has been a flurry of both government and private sector activity to define and implement the ACO concept. With special emphasis on the burgeoning commercial ACOs that are springing up all over the country and, according to some experts, defining the future of the ACO movement, the second National ACO Congress, to be held on November 1-3, 2011 in Los Angeles, will bring together leading policymakers, experts, and those working at the frontline of ACO implementation to provide unique and in-depth insights on what has been done so far, and what the ACO concept means for the future of healthcare. The three-day conference will be filled with keynote presentations from AHIP, the Commonwealth Fund, the CMS Innovation Center, and others, as well as four pre-conferences and nineteen concurrent sessions that offer participants a chance to learn more about the Medicare Shared Savings and Pioneer ACO programs, the Premier ACO collaborative, other private sector ACO partnerships that are springing up across the nation, and Medicaid and safety net-focused ACOs. We will also hear from experts on ACO legal issues, quality measurement, and HIT implementation. Please join us for this exciting agenda as ACO implementation ramps up across the nation.