Billionaire investor Bill Ackman pledged to cover the legal fees for a Texas doctor in a dispute with UnitedHealth Group Inc.

The insurer and its law firm denies a doctor’s online claim that it refused to cover care for a cancer patient.

UnitedHealth Group Inc., the parent company of the UnitedHealthcare company whose CEO was shot and killed last December, has ...

With Bill Ackman's posts, one of the world’s most prominent investors is intensifying a dispute between a doctor and ...

Here is a hard truth for those of us who are care providers: Americans are unsatisfied with the country's healthcare system.

Large-scale attacks on health providers expose the data of millions of Americans each year. Consumers must remain vigilant, ...

Pershing Square Capital Management Chief Executive Officer Bill Ackman said he took down a critical post about UnitedHealth Group Inc. after the company’s lawyers told him the claims about the company ...