Measuring Medicaid/CHIP Enrollment Progress Under the Affordable Care Act

The Centers for Medicare and Medicaid Services recently released information on how many additional people were enrolled in coverage through Medicaid and CHIP since October 1, 2013, when the first open-enrollment period for the new health insurance marketplaces was launched, through April 2014, the most recent information available. This brief assesses how reported changes in enrollment in Medicaid and CHIP during this period compare with changes in Medicaid/CHIP enrollment projected by the end of 2016 by the Urban Institute’s Health Insurance Policy Simulation Model (HIPSM).