In 2013 and 2014, Medicaid will reimburse primary care providers at the same rates as Medicare providers—a "bump" in pay that is fully funded by the federal government under the Affordable Care Act. A new Commonwealth Fund–supported policy brief from the Center for Health Care Strategies provides states with practical advice on how to measure the impact of this rate increase on health care access, utilization, and quality—and how to build a case for sustaining the increase beyond 2014.