The corporate logo of the UnitedHealth Group appears on the side of one of their office buildings in Santa Ana, California, U.S., April 13, 2020.
The corporate logo of the UnitedHealth Group appears on the side of one of their office buildings in Santa Ana, California, U.S., April 13, 2020. Reuters / MIKE BLAKE

The United States Department of Justice is suing to block UnitedHealth Group's $3.3 billion acquisition of Amedisys, arguing that it would harm competition.

The DOJ claims that the deal, which values Amedisys at $101 a share, would give UnitedHealth excessive control over healthcare services, according to the Wall Street Journal.

"Unless this $3.3 billion transaction is stopped, UnitedHealth Group will further extend its grip to home health and hospice care, threatening seniors, their families and nurses," Assistant Attorney General Jonathan Kanter said.

UnitedHealth was allegedly already on the road to creating a monopoly, after last year buying one of Amedisys' competitors, LHC Group.

UnitedHealth also owns the country's largest health insurer, UnitedHealthcare. It also owns Optum, an expansive network of clinics and physicians.

The DOJ's complaint was filed along with several states including Maryland, Illinois, New Jersey and New York.

UnitedHealth addressed the accusations by proposing to divest some assets, specifically merging Amedisys with Optum, but the DOJ remained focused on preventing further consolidation in healthcare.

"The Amedisys combination with Optum would be pro-competitive and further innovation, leading to improved patient outcomes and greater access to quality care," said UnitedHealth Group. "We will vigorously defend against the DOJ's overreaching interpretation of the antitrust laws."

The DOJ has a long-running history with UnitedHealth Group. Currently, the DOJ is investigating UnitedHealth's relationships between its insurance and Optum. In 2022, when UnitedHealth Group attempted to buy Change Healthcare for $8 billion the DOJ sued to block the deal, too.