CVS Caremark is one of the largest providers of health care services in the United States. It fills and manages more than 1 billion prescriptions on an annual basis. The company has over 6,900 pharmacy and drug stores. CVS Caremark also offers clinical and health management programs. It has a retail-based health clinic subsidiary, MinuteClinic. The company additionally operates an online pharmacy, CVS.com. Founded in 1963, CVS Caremark has nearly 2,500 Revco stores in the Midwest and the Southeast. It also maintains a staff of approximately 215,000 employees. The company provides a range of health, beauty and household products. CVS Caremark offers the ExtraCare loyalty program.