Medicaid is a public health insurance program. It is free or low-cost health insurance for eligible low-income adults, children, pregnant women, elderly adults, and people with disabilities. It is the largest health care program in the United States.

In Maryland, Medicaid covers about 1.8 million people. Nearly one in four Marylanders get their health insurance through Medicaid. Half of those covered are children. Locally, people also call it Medical Assistance.