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

U.S. Senator Chuck Grassley requested detailed information on UnitedHealth's Medicare billing practices in a letter to CEO ...

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

Senator Chuck Grassley has raised alarm over reports of a probe by the Justice Department into UnitedHealth's Medicare ...

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

Senator Chuck Grassley, chairman of the Senate Judiciary Committee, sent UnitedHealth (UNH) CEO Andrew Witty a letter demanding detailed ...

Senator Chuck Grassley has launched an inquiry into UnitedHealth Group's Medicare Advantage billing practices following a report from The Wall Street Journal stating the company is being investigated ...

UnitedHealth Group Inc. (NYSE: UNH) shares are trading lower Tuesday after the Wall Street Journal reported that Senator ...

UnitedHealth shares turned lower in midday trading following reports of another probe into the nation's biggest health ...

The Wall Street Journal reported Tuesday that Sen. Chuck Grassley, R-Iowa, sent a letter to UnitedHealth CEO Andrew Witty pushing for a detailed look at how the company handles billing in Medicare ...

Chuck Grassley, who leads the Senate Judiciary Committee, has demanded detailed information on the Medicare billing practices of UnitedHealth Group (NYSE: UNH ). The request was made on Monday and ...

United Health Group, the largest U.S. health insurer by enrollees, was under pressure after Sen. Chuck Grassley, chairman of the Senate Judiciary Committee, sent the conglomerate's chief executive, ...