Walgreens is the nation's largest drugstore chain with fiscal 2010 sales of $67 billion. The company operates 7.689 drugstores in all 50 states, the District of Columbia and Puerto Rico. Each day, Walgreens provides nearly 6 million customers the most convenient, multi-channel access to consumer goods and services and trusted, cost-effective pharmacy, health and wellness services and advice in communities across America. Walgreens scope of pharmacy services includes retail, specialty, infusion, medical facility and mail service, along with respiratory services.