The Justice Department has joined a California whistleblower's lawsuit that accuses insurance giant UnitedHealth Group of fraud in its popular Medicare Advantage health plans.
Justice officials filed legal papers to intervene in the suit, first brought by whistleblower James Swoben in 2009, on Friday in federal court in Los Angeles. On Monday, they sought a court order to combine Swoben's case with that of another whistleblower.
Swoben has accused the insurer of "gaming" the Medicare Advantage payment system by "making patients look sicker than they are," said his attorney, William K. Hanagami. Hanagami said the combined cases could prove to be among the "larger frauds" ever against Medicare, with damages that he speculates could top $1 billion.