NEW YORK (Standard&Poor's) Feb. 9, 2004--Standard&Poor's Ratings Services said today that it assigned its 'A' senior unsecured debt rating to UnitedHealth Group Inc.'s (NYSE:UNH) $250 million 3.75% notes maturing Feb 10, 2009, and $250 million, 4.75% notes maturing Feb. 10, 2014. The proceeds will be used to finance the cash portion of the acquisition of Mid Atlantic Medical Services Inc. (MAMSI). "The rating reflects UNH's extremely strong consolidated earnings profile as well as its very strong financial flexibility and business position," said Standard&Poor's credit analyst Shellie Stoddard. The business position is enhanced by good product and market diversification and the company's unique competencies in specialized services. The consolidated statutory capital position is considered good