Caremark Rx is a pharmacy services company that offers personalized health plans and prescription management services through CVS Health. The company provides convenient access to affordable medication delivery options, including mail-order prescriptions and in-network pharmacies, allowing customers to choose how they want their medication delivered. With the Caremark.com tool, customers can check if their medications are covered, view savings options, and find nearby pharmacies. The mobile app also enables quick prescription refills and finds network pharmacies.