What it is
Medigap, also called Medicare Supplement Insurance, is private insurance that people with Original Medicare may buy to help with some out-of-pocket costs that Original Medicare does not fully cover. Those costs can include things like deductibles, copayments and coinsurance.
Medigap plans are sold by private insurance companies and are identified by standardized letters. Within a given letter, the basic benefits are generally the same from one company to the next, though pricing, service and rules can differ. Medigap works alongside Original Medicare rather than replacing it.
Medigap is different from Medicare Advantage (Part C). Medicare Advantage is an alternative way to receive Medicare benefits through a private plan, and it generally comes with its own network, rules and cost structure. A person typically chooses one path or the other rather than combining them.
How it’s traditionally been approached
Many people who prefer Original Medicare have looked at Medigap as a way to make their health costs more predictable. Because Medigap generally works with providers who accept Original Medicare, some people value the flexibility it may offer in choosing doctors and hospitals.
Others have preferred Medicare Advantage, which often bundles hospital, medical and sometimes extras such as drug coverage into one plan. Some people value that all-in-one structure, possible added benefits and the way costs are laid out, while accepting that networks, referrals and prior authorization may apply.
Neither approach is right for everyone. Medigap may involve a separate monthly premium and usually a separate drug plan, while Medicare Advantage may involve network rules and different cost-sharing when care is used. Health needs, budget, travel habits, preferred doctors and comfort with uncertainty often shape the choice. Rules, timing and costs change from year to year, so current details are best confirmed at Medicare.gov or 1-800-MEDIGAP.
How the right agent may help
A licensed, independent agent who understands Medigap may help you sort through the plan letters, explain how Medigap interacts with Original Medicare, and describe how Medicare Advantage differs. A good agent may also help you see trade-offs on both sides rather than steering you toward a single answer.
A conversation with an agent is generally an educational one. They may ask about your doctors, prescriptions, budget, how often you travel and how you feel about network rules. They may also explain when decisions are typically made and how timing could affect your options.
Helpful questions to ask include: Which companies in my area sell Medigap, and how do they differ in service? How might my doctors and hospitals be affected under each approach? What would I still need to arrange separately, such as drug coverage? How might costs change over time? Which carriers does the agent represent, and does the agent compare other options?
The bigger picture
Choosing between Medigap and Medicare Advantage is about more than paperwork. It touches how secure you feel about future health costs, how comfortable you are with your doctors, and how much complexity you want to manage. Peace of mind often comes from understanding your options clearly rather than rushing.
Taking time to learn, ask questions and involve a trusted family member can ease stress. If you are also looking for support with the wider health and wellness side of aging, Providers.plus is one resource you may explore alongside your Medicare research.
Keep in mind
- Medicare News is an independent directory, not a professional advisor, and is not affiliated with the U.S. government, Medicare.gov, or CMS.
- Plan rules, costs and enrollment timing change regularly, so confirm current numbers with Medicare.gov or 1-800-MEDIGAP.
- Medigap and Medicare Advantage each have real advantages and trade-offs; the better fit depends on your personal situation.
- This page is educational and is not medical, legal, tax or financial advice.
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Frequently asked questions
What is Medigap?
Medigap is private Medicare Supplement Insurance that may help pay some costs Original Medicare does not fully cover, such as deductibles, copayments and coinsurance. It works alongside Original Medicare and is sold by private insurance companies.
What is the difference between Medigap and Medicare Advantage?
Medigap supplements Original Medicare, while Medicare Advantage replaces how you receive Original Medicare benefits through a private plan. Medigap generally offers broader provider flexibility, while Medicare Advantage often bundles benefits and may use networks. Each has trade-offs in costs and rules.
Can I have Medigap and Medicare Advantage at the same time?
No, Medigap generally is not designed to be used together with a Medicare Advantage plan. People typically choose one approach or the other. An independent agent or 1-800-MEDIGAP can explain how this applies to your situation.
Does Medigap cover prescription drugs?
Medigap plans sold today generally do not include prescription drug coverage, so people often look at a separate Medicare drug plan. Many Medicare Advantage plans include drug coverage in the plan. Check current details with Medicare.gov or an agent.
How much does Medigap cost?
Medigap costs vary by plan letter, company, location and other factors, and they change over time. This site does not quote prices. For current numbers, contact 1-800-MEDIGAP or visit Medicare.gov.
Is the latest medicare news about Medigap reliable here?
Medicare News provides evergreen educational explainers rather than breaking news or current figures. Because rules and costs change each year, please confirm up-to-date details with Medicare.gov or 1-800-MEDIGAP. This site is not affiliated with the government or CMS.
Educational resource. Medicare News shares general information and connects people with independent agents. It is not professional advice. Talk with a qualified professional about your own situation.