Sereboff v. Mid Atlantic Medical Services, Inc., 547 U.S. 356 (2006), was a case decided by the Supreme Court of the United States involving the ability of an Employee Retirement Income Security Act (ERISA) plan fiduciary to recover medical costs from a beneficiary who has been reimbursed for injuries by a third party. The Court ruled unanimously that ERISA permitted the fiduciary to recover costs from the settlement proceeds a beneficiary received in a personal injury lawsuit.