Law360, New York (April 22, 2009, 12:00 AM EDT) -- Pittsburgh's dominant hospital system, UPMC, and the city's dominant health insurer, Highmark Inc., have been conspiring to stifle competition, hike up prices and drive UPMC competitor West Penn Allegheny Health System Inc. out of business since at least 2002, according to a complaint filed by West Penn Allegheny.
West Penn Allegheny Health System filed the suit against UPMC and Highmark in the U.S. District Court for the Western District of Pennsylvania on Tuesday.
The suit accuses the defendants of entering into an illegal agreement to restrain...
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