UnitedHealth Group has completed its acquisition of Tennessee-based Change Healthcare, a $13 billion deal the Justice Department unsuccessfully tried to block on competitive grounds.
Change Healthcare is a health care data firm that's now a part of Optum, the division for health care services at Minnetonka-based UnitedHealth Group.
Last month, a judge in the U.S. District Court for Washington, D.C., ruled the government failed to show during a two-week trial that the acquisition would substantially diminish competition.
"The combination will connect and simplify the core clinical, administrative and payment processes health care providers and payers depend on to serve patients," the company said in a statement on Monday. "Increasing efficiency and reducing friction will benefit the entire health system, resulting in lower costs and a better experience for all stakeholders."
Change Healthcare operates the nation's largest electronic data interchange (EDI) clearinghouse, which health care providers use to submit claims for payment and insurers use to provide remittances.
In February, the Justice Department filed a lawsuit alleging the merger could potentially harm millions of Americans by lowering the quality of health insurance while also making coverage more costly.
The government asserted that UnitedHealth — with control of the clearinghouse — would harm competition through its access to rival health insurers' competitively sensitive information.
But Judge Carl Nichols determined the government didn't make its case that the company would either "misuse" the data to promote its own health insurance business or to raise rivals' costs and limit innovation.