Average hospital charges for a major joint replacement, such as an artificial hip, vary widely, as this map from the federal Centers for Medicare & Medicaid Services shows. HHS hide caption

itoggle caption HHS

If you bought this 1954 Buick when it was new, the price was just about as mysterious as it is today for hip replacement surgery. Hugo90/Flickr hide caption

itoggle caption Hugo90/Flickr

Among common health problems, depression was linked to the highest increase in annual spending by employers' on workers' health care. iStockphoto.com hide caption

itoggle caption iStockphoto.com

A database of fees charged by out-of-network dentists could help lower your bill. iStockphoto.com hide caption

itoggle caption iStockphoto.com