Having health insurance is important for several reasons. Uninsured people receive less medical care and less timely care, they have worse health outcomes, and lack of insurance is a fiscal burden for them and their families. Moreover, the benefits of expanding coverage outweigh the costs for added services. Safety-net care from hospitals and clinics improves access to care but does not fully substitute for health insurance. These findings are supported by much research, although some cautions are appropriate in using these results.
Medicare Supplement policies are designed to cover expenses not covered (or only partially covered) by the "original Medicare" (Parts A & B) fee-for-service benefits. They are only available to individuals enrolled in Medicare Parts A & B. Medigap plans may be purchased on a guaranteed issue basis (no health questions asked) during a six-month open enrollment period when an individual first becomes eligible for Medicare. The benefits offered by Medigap plans are standardized.
In 2010, President Barack Obama signed the Patient Protection and Affordable Care Act into law. It prohibits insurance companies from denying coverage to patients with pre-existing conditions and allows children to remain on their parents' insurance plan until they reach the age of 26. In participating states, the act also expanded Medicaid, a government program that provides medical care for individuals with very low incomes. In addition to these changes, the ACA established the federal Healthcare Marketplace. The marketplace helps individuals and businesses shop for quality insurance plans at affordable rates. Low-income individuals who sign up for insurance through the marketplace may qualify for subsidies to help bring down costs.
Generally, group health insurance plans cover the cost of medical office visits for illness and checkups, hospitalization, emergency room services, ambulance transportation, operations, physical therapy, and even prescription drugs, to provide several examples of potentially covered health care services. But, every plan is different and it behooves an employee to become familiar with the details of his or her employer's plan before the benefit is needed.
In January 2013, Representative Jan Schakowsky and 44 other U.S. House of Representatives Democrats introduced H.R. 261, the "Public Option Deficit Reduction Act", which would amend the 2010 Affordable Care Act to create a public option. The bill would set up a government-run health insurance plan with premiums 5% to 7% percent lower than private insurance, with the Congressional Budget Office estimating a reduction in the United States public debt by $104 billion over 10 years.
In 2003, according to the Heartland Institute's Merrill Matthews, association group health insurance plans offered affordable health insurance to "some 6 million Americans." Matthews responded to the criticism that said that some associations work too closely with their insurance providers. He said, "You would expect the head of AARP to have a good working relationship with the CEO of Prudential, which sells policies to AARP's seniors."
Public insurance cover increased from 2000–2010 in part because of an aging population and an economic downturn in the latter part of the decade. Funding for Medicaid and CHIP expanded significantly under the 2010 health reform bill. The proportion of individuals covered by Medicaid increased from 10.5% in 2000 to 14.5% in 2010 and 20% in 2015. The proportion covered by Medicare increased from 13.5% in 2000 to 15.9% in 2010, then decreased to 14% in 2015.