The Blue Cross and Blue Shield company will stop marketing most of its Medicare Advantage policies online beginning May 1.

The U.S. Department of Justice accused three of the nation's largest health insurers of paying hundreds of millions of dollars in kickbacks to brokers in exchange for steering patients into the insurers' Medicare Advantage plans.

The Justice Department has sued three of the largest Medicare Advantage insurers and three dominant insurance brokerages, alleging a kickbacks scheme.