Number of providers by state who wrote at least 3,000 prescriptions for Schedule 2 controlled substances in 2012 in Medicare Part D. ProPublica/NPR hide caption

itoggle caption ProPublica/NPR

Dr. Oliver Korshin says he's just a few years from retirement and can't afford the flurry of technology upgrades the federal government expects him to make. Annie Feidt/Alaska Public Media hide caption

itoggle caption Annie Feidt/Alaska Public Media

An official at the University of Michigan Health System in Ann Arbor says its mix of patients helps explain the infection rates. Scott C. Soderberg/Courtesy of University of Michigan Health System hide caption

itoggle caption Scott C. Soderberg/Courtesy of University of Michigan Health System

Doctors say they need to accept patients with a variety of types of insurance in order for them to stay in businesses. iStockphoto hide caption

itoggle caption iStockphoto

Keeping patient records electronically, instead of on paper, didn't change how much hospitals charged per procedure, a study shows. But critics say billing errors can be more subtle. Roy Scott/Ikon Images/Corbis hide caption

itoggle caption Roy Scott/Ikon Images/Corbis