UnitedHealthcare has won dismissal of a putative class action alleging its handling of secondary-coverage claims by Medicare enrollees resulted in underpayment for a large number of insureds.

U.S. District Judge Jerome Simandle sitting in Camden, N.J., denied class certification on Thursday in Lipstein v. UnitedHealth Group, finding the plaintiffs failed to prove commonality and predominance of claims or that a single remedy could provide classwide relief.