What are the three main public health insurance?

The three main public health insurance programs in the United States are Medicare, Medicaid, and the Children's Health Insurance Program (CHIP). Medicare primarily provides health coverage for individuals aged 65 and older, as well as some younger individuals with disabilities. Medicaid offers health coverage to low-income individuals and families, while CHIP focuses on providing health insurance for children in families with incomes too high to qualify for Medicaid but too low to afford private coverage. These programs aim to ensure access to necessary medical services for vulnerable populations.