CVS is the nation's largest pharmacy service by market share according to consumer data provider Statista, eclipsing Rite Aid, Walgreens and Walmart and over a dozen other brands. CVS has a market ...

CVS Pharmacy Inc. is being sued by the U.S. Department of Justice for allegedly filling illegal prescriptions and seeking reimbursement from federal health care programs for unlawful medications.

CVS is opening new stores around the nation, but they will be significantly smaller and focus only on pharmacy services. The move comes as the industry undergoes a major shift.