Managed Care: A medical delivery system that attempts to manage the quality and cost of medical services that individuals receive. Most managed care systems offer HMOs and PPOs that individuals are encouraged to use for their health care services. Some managed care plans attempt to improve health quality, by emphasizing prevention of disease.

Maximum Dollar Limit: The maximum amount of money that an insurance company will pay for claims within a specific time period.

Medigap Insurance Policies: Medigap insurance is offered by private insurance companies, not the government. It is not the same as Medicare or Medicaid. These policies are designed to pay for some of the costs that Medicare does not cover.