Columbia International Affairs Online: Working Papers

CIAO DATE: 04/2011

Estimating ObamaCare's Effect on State Medicaid Expenditure Growth

Jagadeesh Gokhale

January 2011

The Cato Institute

Abstract

Unless repeal attempts succeed, the Patient Protection and Affordable Care Act of 2010 (ObamaCare) promises to increase state government obligations on account of Medicaid by expanding Medicaid eligibility and introducing an individual health insurance mandate for all US citizens and legal permanent residents. Once ObamaCare becomes fully effective in 2014, the cost of newly eligible Medicaid enrollees will be almost fully covered by the federal government through 2019, with federal financial support expected to be extended thereafter. But ObamaCare provides states with zero additional federal financial support for new enrollees among those eligible for Medicaid under the old laws. That makes increased state Medicaid costs from higher enrollments by "old-eligibles" virtually certain as they enroll into Medicaid to comply with the mandate to purchase health insurance. This study estimates and compares potential increases in Medicaid costs from ObamaCare for the five most populous states: California, Florida, Illinois, New York, and Texas.