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Medicaid, which was established by Title XIX of the Social Security Act in the United States in 1965, is a social insurance program that pays for basic medical services for the nation’s individuals and families who have the least income and resources. While the enactment of the Affordable Care Act (ACA) in 2010 has provided more reasonably priced insurance options for many low-income and previously uninsured individuals, Medicaid continues to be the biggest health safety net program, with more than 70 million people, one in five Americans, enrolled. It accounts for 16% of the nation’s spending on health care, at a cost of almost $500 billion in 2014. In addition to covering prescription drugs and acute care for enrollees, Medicaid is the main source ...

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