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 ...

The U.S. Department of Justice is investigating Medicare Advantage billing practices at UnitedHealth Group, a development ...

UnitedHealth Group faces unconfirmed allegations of inflating risk ratings for reimbursements, causing market panic despite ...

UnitedHealth Group Inc. shares fell after a report that Republican Senator Charles Grassley is launching an inquiry into the ...

UnitedHealth (UNH) stock falls as the company faces a new probe launched by Sen. Grassley over its Medicare billing practices ...

The U.S. Justice Department is investigating UnitedHealth's Medicare billing practices, the Wall Street Journal reported on ...

It extends a tumultuous period for UnitedHealth marked by the killing of a top executive, a costly cyberattack against its ...

Letters this month are telling patients that last year’s cyberattack “may have involved your data.” Lawsuits are moving ...

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

The selloff came as more than $2.7 trillion worth of options expired, an event which typically spurs heightened volatility.