LOS ANGELES - In two separate cases, skilled nursing provider Ensign Group Inc. agreed to pay $48 million to resolve allegations that it knowingly submitted Medicare false claims for medically unnecessary rehabilitation services, according to a Nov. 19 press release issued by the U.S. Department of Justice (United States of America ex rel. Gloria Patterson v. Ensign Group Inc., No. 06-6956, United States of America ex rel. Carol Sanchez v. Ensign Group Inc., No. 06-0643, C.D. Calif.).