The independent source for health policy research, polling, and news.
KFF’s policy research provides facts and analysis on a wide range of policy issues and public programs.
KFF designs, conducts and analyzes original public opinion and survey research on Americans’ attitudes, knowledge, and experiences with the health care system to help amplify the public’s voice in major national debates.
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the organization’s core operating programs.
As part of several debt-reduction and Medicare-reform proposals, some policymakers propose to prohibit Medicare supplemental insurance policies (known as Medigap) from covering all of enrollees' out-of-pocket Medicare costs, which some believe leads to higher use of services and higher Medicare spending.
A quarter of people in traditional Medicare had private, supplemental health insurance in 2015—also known as Medigap—to help cover their Medicare deductibles and cost-sharing requirements, as well as protect themselves against catastrophic expenses for Medicare-covered services. This issue brief examines implications for older adults with pre-existing medical conditions who may be unable to purchase a Medigap policy or change their supplemental coverage after their initial open enrollment period.
In all but four states, insurance companies can deny private Medigap insurance policies to seniors after their initial enrollment in Medicare because of a pre-existing medical condition, such as diabetes or heart disease, except under limited, qualifying circumstances, a Kaiser Family Foundation analysis finds.
To capture Medicare beneficiaries’ views and experiences in choosing between traditional Medicare and private plans, and among private plans, and the factors that influence these decisions, KFF worked with PerryUndem to conduct focus groups with Medicare beneficiaries in the Fall of 2022, during the annual Medicare open enrollment period. This report summarizes first-hand accounts of participants’ reactions open enrollment advertising and factors that influence their decision-making around Medicare plan choice.
This brief considers how default enrollment into Medicare Advantage might work, potential challenges with this approach, and implications for beneficiaries, insurers, providers, agents and brokers, and the federal budget.
On March 26, 2015, the House of Representatives passed H.R. 2, the Medicare Access and CHIP Reauthorization Act of 2015, which would replace the Sustainable Growth Rate (SGR) formula, among other changes; the bill is currently pending in the U.S. Senate. H.R. 2 includes a provision that would prohibit Medicare supplemental insurance (Medigap) policies from covering the Part B deductible for people who become eligible for Medicare on or after January 1, 2020. This data note looks at the number and share of “new” Medicare beneficiaries who would be affected by the Medigap provision in H.R. 2, if it had been implemented in 2010, using the most current data sources available, and examines trends in Medigap enrollment among new beneficiaries since 2000.
The House-passed legislation to repeal the Medicare Sustainable Growth Rate (SGR) includes a provision that would prohibit Medicare supplemental insurance (Medigap) policies from covering the Part B deductible for people who become eligible for Medicare beginning in 2020.
Revamping traditional Medicare’s benefit design and restricting “first-dollar” supplemental coverage could reduce federal spending, simplify cost sharing, protect against high medical costs, decrease out-of-pocket spending for many beneficiaries, and provide more help to those with low incomes -- but would be unlikely to achieve all of these goals simultaneously.
In this new policy insight, the Kaiser Family Foundation’s Tricia Neuman examines current rules that may discourage seniors from switching from Medicare Advantage to traditional Medicare.Traditional Medicare…Disadvantaged? explores this issue through the lens of a 67-year old Boomer who faced difficult financial and health coverage choices in the aftermath of a serious mountain biking accident.
This brief presents the most current data available on the Medicare supplemental insurance (Medigap) market, including enrollment and premiums by state and plan type, analyzes how many beneficiaries have first dollar coverage (particularly Plans C and F), and describes recent Medigap proposals that have emerged as part of efforts to reduce Medicare spending and the national debt.
© 2025 KFF