<Tr> <Th> Acts amended </Th> <Td> Social Security Act </Td> </Tr> <Tr> <Th_colspan="2"> Legislative history </Th> </Tr> <P> The Medicare Improvements for Patients and Providers Act of 2008 ("MIPPA"), is a 2008 statute of United States Federal legislation which amends the Social Security Act . </P> <P> On July 15, 2008, President George W. Bush vetoed the bill . On that same day the House of Representatives and the Senate voted to overturn the veto . </P>

Mippa was enacted in 2008 and is an acronym for