MINNEAPOLIS--(BUSINESS WIRE)--March 2, 2005--Ovations, a business unit within UnitedHealth Group (NYSE:UNH), has informed the Centers for Medicare & Medicaid Services (CMS) of the company’s intent to participate nationally in the Part D drug benefit program. While this action is non-binding, it represents the first of a series of steps to be taken as CMS finalizes the details around the program implementation.