Medco Health Solutions, Inc (NYSE: MHS) is a health care company currently serving the needs of approximately 65 million people. Medco provides pharmacy services for private and public employers, health plans, labor unions, government agencies, and individuals served by Medicare Part D Prescription Drug Plans. Medco is a member of the S&P 500 and is ranked number 35 on the Fortune 500 list, with 2009 revenues of more than $59.8 billion. - Source: Wikipedia