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Health Policy Glossary

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Medicare

Medicare is the health insurance program for Americans ages 65 and older, and for younger adults with permanent disabilities.  Established in 1965 under Title XVIII of the Social Security Act, Medicare was initially established to provide health insurance to individuals age 65 and older, regardless of income or medical history.  The program was expanded in 1972 to include individuals under age 65 with permanent disabilities.  Medicare has four parts, each covering different benefits.  Part A covers inpatient hospital services, skilled nursing facility, home health, and hospice care, and is funded by a dedicated tax of 2.9 percent of earnings paid by employers and workers.  Part B helps pay for physician, outpatient, home health, and preventive services, and is funded by general revenues and beneficiary premiums ($96.40 per month in 2009).  Part C, also known as the Medicare Advantage program, allows beneficiaries to enroll in a private plan, that receives payments from Medicare to provide Medicare-covered benefits.  Part D is the prescription drug benefit, delivered through private plans that contract with Medicare.  Part D is funded by general revenues, beneficiary premiums, and state payments.

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