CVS Health Corporation, together with its subsidiaries, is a health services company. The Company operates through four segments: Pharmacy Services, Retail/LTC, Health Care Benefits and Corporate/Other. The Pharmacy Services segment provides a range of pharmacy benefit management (PBM) solutions, including plan design offerings and administration, retail pharmacy network management services, mail order pharmacy, specialty pharmacy, clinical services, disease management services and medical spend management. The Retail/LTC segment sells prescription drugs and a range of health and wellness products and general merchandise. Its Health Care Benefits segment offers a range of traditional, voluntary and consumer-directed health insurance products and related services. It has approximately 9,900 retail locations, over 1,100 walk-in medical clinics, a pharmacy benefits manager with approximately 105 million plan members, specialty pharmacy services and a senior pharmacy care business.