CVS Health chief executive officer Karen Lynch has stepped down and will be replaced by David Joyner who run’s the company’s pharmacy benefit firm, Caremark. CVS Health chief executive officer Karen Lynch has stepped down and will be replaced by David Joyner who run’s the company’s pharmacy benefit firm, Caremark. Healthcare, /healthcare, Innovation, /innovation, Healthcare, /healthcare, Business, /business, Retail, /retail, business, pharma, standard