In 2012, Medicaid covered more than 16 million non-elderly adults. Although these individuals are as likely to have a usual source of medical care as those with private coverage—and less likely to experience access problems than adults without insurance—they have more trouble finding physicians to treat them, more difficulty finding providers who will accept their insurance, more delays getting appointments, and more problems with transportation when they need medical care when compared with adults of comparable income, disability status, or race and ethnicity who have private coverage.