Recently, the California Public Employees’ Retirement System (CalPERS) selected CVS Caremark (CVS) to manage pharmacy benefits for its preferred provider organization (PPO) health plans, catering to more than 346,000 members. The three-year contract, to be effective from January 1, 2012, represents about $565 million in annual drug spending. The contract also has the option of [...] (CVS) CVS Caremark to Manage CalPERS PPO