This excerpt taken from the UNH 10-K filed Mar 6, 2007.
The Ovations Secure Horizons division provides health care coverage for the seniors market primarily through the Medicare Advantage program administered by CMS. Ovations offers Medicare Advantage HMO, preferred provider organization (PPO), Special Needs Plans and Private-Fee-for-Service plans. Under the Medicare Advantage programs, Ovations provides health insurance coverage to eligible Medicare beneficiaries in exchange for a fixed monthly premium per member from CMS that varies based on the geographic areas in which members reside. Most products are offered under the Secure Horizons by UnitedHealthcare brand name. In 2006, Ovations Secure Horizons expanded its program and now offers Medicare Advantage products in all 50 states. As of December 31, 2006, Ovations had approximately 1.4 million enrolled individuals in its Medicare Advantage products, of whom more than 1.2 million will receive their Part D coverage through Secure Horizons. Ovations began offering a regional PPO Medicare Advantage plan in three markets on January 1, 2006.