The headquarters for University of Pittsburgh Medical Center and Highmark Blue Cross/Blue Shield dominate the Pittsburgh skyline much as they organizations have dominated health care in the region for decades. Jeff Brady/NPR hide caption

itoggle caption Jeff Brady/NPR

Surgeons at Methodist University Hospital in Memphis prepare to transplant a liver in 2010. Karen Pulfer Focht/The Commercial Appeal/Landov hide caption

itoggle caption Karen Pulfer Focht/The Commercial Appeal/Landov

Truvada, an FDA-approved drug to help prevent HIV infection, is among the AIDS drugs that fill pharmacy shelves at the Whitman-Walker clinic, a Washington, D.C., community health center. Astrid Riecken/MCT/Landov hide caption

itoggle caption Astrid Riecken/MCT/Landov

A volunteer escort waits outside a clinic that provides abortions in Milwaukee. Wisconsin is one of many states that have passed laws requiring doctors to have hospital privileges if they perform abortions. Dinesh Ramde/AP hide caption

itoggle caption Dinesh Ramde/AP

First-year medical student Ngabo Nzigira gets ready to see a patient at a Kaiser Permanente facility in Sacramento. Andrew Nixon/Capital Public Radio hide caption

itoggle caption Andrew Nixon/Capital Public Radio

Arkansas, Kentucky, Delaware and Colorado have all seen significant increases since 2013 in the percentage of residents who have health insurance. Vectoraart/iStockphoto hide caption

itoggle caption Vectoraart/iStockphoto

Television trucks converged on Mount Sinai Hospital in New York on Monday after it announced that it was screening a patient for Ebola virus. Stan Honda/AFP/Getty Images hide caption

itoggle caption Stan Honda/AFP/Getty Images