Rep. Paul Ryan of Wisconsin, seen at a weekend rally in Powell, Ohio, is set to formally accept the GOP nomination to become Mitt Romney's running mate. Jewel Samad/AFP/Getty Images hide caption

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With help from the Affordable Care Act, government fraud investigators will make more use of computer programs to detect Medicare and Medicaid scams. iStockphoto.com hide caption

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C.S. Mott Women and Children's Hospital is part of the University of Michigan Ann Arbor Health System, one of the organizations Medicare is penalizing for its high readmission rate. Lon Horwedel/AP hide caption

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Republican presidential candidate Mitt Romney (right) and running mate Rep. Paul Ryan of Wisconsin greet supporters during a homecoming campaign rally Sunday in Waukesha, Wis. Justin Sullivan/Getty Images hide caption

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Beth Israel Deaconess Medical Center has higher rates of readmissions for Medicare patients for some conditions. But its mortality rates for the same conditions is lower than at many hospitals. Beth Israel Deaconess Medical Center hide caption

itoggle caption Beth Israel Deaconess Medical Center