Measuring What Matters for ACOs

January 31, 2014 - More than 55 percent of the U.S. population now lives in a local area with an accountable care organization (ACO), in which a group of providers is held accountable by a payer for the total cost and quality of care for a defined set of patients. The spread of ACOs, however, by no means ensures their success. Significant questions remain about whether the goals of the model—better care at lower costs—will be achieved.