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 Justice Department is probing diagnoses and practices that triggered extra payments to UnitedHealth’s Medicare Advantage ...

The Senate Judiciary Committee probe is looking at UnitedHealth' s Medicare Advantage program, a privately administered version of the US Medicare health coverage plan for seniors and the disabled, ...

The health insurance giant has called a new report from WSJ “misinformation,” but investors may not be so sure. Shares were ...

The Department of Justice has reportedly launched an investigation into UnitedHealth Group's Medicare billing practices, ...

U.S. Sen. Charles Grassley says health plans ‘continue to defraud’ taxpayers in letter asking questions of Eden Prairie-based health care giant.

UnitedHealth Group (UNH) is under fire over its Medicare billing practices. The Wall Street Journal reported Friday that the ...

The CMS released highly anticipated MA enrollment data on Tuesday that showed UnitedHealth further tightening its grip on the ...

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

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

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