The U.S. Department of Justice and four state attorney generals filed an antitrust lawsuit against UnitedHealth Group on ...

New York State Attorney General Letitia James is joining a lawsuit to stop the merger ofUnitedHealth and Amedisys; two of ...

The suit follows Minnesota-based UnitedHealth's acquisition of LHC Group Inc., another home health and hospice provider.

Antitrust enforcers argue that the healthcare giant’s latest deal would illegally harm competition.