(April 30, 2019, 8:56 AM EDT) -- SAN FRANCISCO — A dialysis patient’s assignment of “any cause of action” applies only to claims for benefits under the Employee Retirement Income Security Act, and an insurer’s decision not to cover dialysis does not violate Medicare law, a federal judge in California held April 5 (DaVita Inc., et al. v. Amy’s Kitchen Inc., et al., No. 18-6975, N.D. Calif., 2019 U.S. Dist. LEXIS 59387)....