MACo Silver Corporate Partner CareFirst, an independent license of the Blue Cross and Blue Shield Association, is a not-for-profit health care company which, through its affiliates and subsidiaries, offers a comprehensive portfolio of health insurance products and administrative services to 3.2 million individuals and groups in Maryland, the District of Columbia and Northern Virginia. In 2016, CareFirst invested nearly $44 million to improve overall health, and increase the accessibility, affordability, safety and quality of health care throughout its market areas.