Obama Renominates Rationing Czar Berwick to Medicare Post Washington, DC -- Late Wednesday night, President Barack Obama renominated "rationing czar" Donald Berwick to his current post as the administrator of the Centers for Medicare and Medicaid Services and the chief of implementation of the Obamacare law. http://www.lifenews.com/2011/01/27/obama-renominates-rationing-czar-berwick-to-medicare-post/