CVS Caremark is one of the nation’s leading pharmacy benefit management (PBM) companies, provides comprehensive prescription benefit management services to over 2,200 health plans, including corporations, managed care organizations, insurance companies, unions and government entities.  With net revenue of approximately $ 51 billion in 2009 they are also one of the largest PBM’s.  

They have a retail pharmacy network of over 60,000 participating pharmacies, as well as 11 mail service pharmacies and 20 specialty pharmacies.  CVS Caremark has 7,000 retail stores including 560 Minute Clinics across 25 states.