Another term for the Health Insurance Marketplace, a service available in every state that helps individuals, families, and small businesses shop for and enroll in affordable medical insurance. The Marketplace is accessible through websites, call centers, and in-person assistance. When you fill out a Marketplace application, you’ll find out if you qualify to save money when you enroll in a medical insurance plan. You’ll also find out if you qualify for Medicaid and the Children’s Health Insurance Program (CHIP). Whether you qualify for these programs depends on your expected income, household members, and other information.