Data Note: Medicare Advantage Enrollment, by Firm, 2015
Issue Brief
A number of potential mergers and acquisitions between large firms that offer health insurance have been reported in the press. These mergers could affect consumers in the individual market, enrollees in the new federal and state Marketplaces, employees with employer-sponsored insurance, as well as people covered by public programs such as Medicare. This Data Note examines the Medicare Advantage market share of large firms that have reportedly engaged in merger and acquisition discussions: Aetna, Anthem, Cigna, Humana, and UnitedHealthcare.