Mealey's (June 25, 2018, 11:54 AM EDT) -- LOS ANGELES — Medicare doesn’t preempt a hospital group’s breach of contract action alleging that an insurer downcoded claims in an effort to underpay on bills, a federal judge in California held June 22 (Prime Healthcare Services Inc. v. Humana Insurance Co., et al., No. 16-1097, C.D. Calif.)....