U.S. Senator Chuck Grassley had demanded detailed information on UnitedHealth's Medicare billing practices, according to a ...

Sen. Chuck Grassley (R-Iowa) has given UnitedHealth Group two weeks to explain its method for documenting Medicare Advantage ...

UnitedHealth Group faced two new investigations from federal lawmakers. The first was a senator’s probe into its Medicare ...

The Iowa Republican’s letter to the company cites findings from a series of Wall Street Journal articles.