New CEO takes reins of CVS

Woonsocket, R.I. -- CVS Caremark Corp. announced Tuesday that Larry J. Merlo has assumed the role of chief executive. Merlo, now president and CEO of CVS Caremark, succeeds Thomas M. Ryan who will remain non-executive chairman until his retirement at the company's annual meeting in May.

Merlo, a pharmacist by training with over 30 years in pharmacy health, joined CVS/pharmacy in 1990 through the company's acquisition of Peoples Drug.