Size matters to CVS Health Corp. (formerly CVS Caremark), a leading pharmacy benefits manager with nearly 75 million plan members as well as the nation's #2 drugstore chain with more than 9,600 retail and specialty drugstores under the CVS, Navarro, and Longs Drug banners. In addition to its stand alone pharmacy operations, the company operates CVS locations inside Target stores, and runs a prescription management company, Caremark Pharmacy Services. The growing company also offers specialty pharmainfusion services business, as well as walk-in health services through its retail network of MinuteClinics that are located in around 1,000 CVS stores. In mid-2015, it acquired nursing home pharmacy Omnicare in a $12.7 billion mega deal.