Bipartisan concern over Medicare policies driving hospital consolidation has been long-standing, but conflicting evidence has clouded the waters, lawmakers said.
Under the Emergency Medical Treatment and Active Labor Act, hospitals participating in Medicare are required to screen and stabilize emergency room patients.
WellCare said in May that it would have the top Medicaid membership market share in Michigan and Illinois, increasing its leading market position from four to six states.
Supply costs and physician and professional fees spawned an increase in total expenses to $4.1 billion for the six months ending June 30 this year, records show.
It is the first study to examine financial conflict of interest in the publication of clinical trials that underpin FDA approval of new oncology drugs.
The deal is pending evaluation by the North Carolina Attorney General on the potential effect the transaction could have on market competition, plus other factors.