President Obama and House Speaker John Boehner of Ohio talk with reporters at the White House after a meeting about the federal budget deficit and economy in Nov. 2012. Some Republicans have proposed raising the Medicare eligibility age to 67. Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP

Protesters fill the Miami office of state Rep. Manny Diaz Jr. on Sept. 20 to protest his stance against expansion of health coverage in Florida. Joe Raedle/Getty Images hide caption

itoggle caption Joe Raedle/Getty Images

The next bed could cost you a lot if the hospital says you're there on observation. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Back in 2006, President Bush and Health and Human Services Secretary Michael Leavitt talked with reporters during a trip to Florida, where Bush spoke to volunteers helping seniors sign up for the Medicare prescription drug benefit. Mike Stocker/AP hide caption

itoggle caption Mike Stocker/AP

They're back: Cheaper mail-order medications from Canada and other foreign lands. iStockphoto.com hide caption

itoggle caption iStockphoto.com

A billboard advertising robotic surgery hangs outside Boston's Fenway Park in 2009. Hospitals and doctors have heavily promoted robotic surgery. Charles Krupa/AP hide caption

itoggle caption Charles Krupa/AP

How does the doctor decide what to write on the prescription pad? iStockphoto.com hide caption

itoggle caption iStockphoto.com

Patients wait in line at Nuestra Clinica Del Valle in San Juan, Texas, in September 2012 file photo. A study released on Wednesday finds that immigrants, particularly noncitizens, heavily subsidize Medicare, and that policies that restrict immigration may deplete Medicare's financial resources. Eric Gay/AP hide caption

itoggle caption Eric Gay/AP