Medicare Supplement FAQs

Last Updated March 13, 2024

Medicare Supplement FAQs

Some of the most frequently asked questions about Medicare Supplement plans include:

1) What is a Medicare Supplement plan?

A Medicare Supplement plan is a type of health insurance plan that is designed to supplement Original Medicare (Parts A and B). Medicare Supplement plans are also known as Medigap plans. These plans are offered by private insurance companies and are designed to help cover some of the out-of-pocket costs that Original Medicare does not cover, such as copayments, coinsurance, and deductibles.

2) How does a Medicare Supplement plan work?

A Medicare Supplement plan works by covering some of the out-of-pocket costs that Original Medicare does not cover. This can include copayments, coinsurance, and deductibles for things like hospital stays, medical procedures, and doctor visits. Medicare Supplement plans typically have a monthly premium in addition to the premiums you pay for Original Medicare.

When you receive medical services, you will typically pay your share of the costs (such as your deductible and coinsurance) and your Medicare Supplement plan will pay its share. This can help to reduce your out-of-pocket costs and give you additional coverage for medical expenses.

To enroll in a Medicare Supplement plan, you must be enrolled in both Medicare Part A and Part B. You can then shop for a Medicare Supplement plan that suits your needs and budget, and enroll through the private insurance company that offers the plan. It's important to compare plans and premiums before enrolling, to make sure you're getting the coverage you need at a price you can afford.

3) How do I enroll in a Medicare Supplement plan?

If you are eligible for Medicare, you can enroll in a Medicare Supplement plan by contacting a private insurance company that offers the plan. You will need to provide your Medicare number and other personal information to complete the enrollment process. If you need help finding a Medicare Supplement plan, you can contact the Medicare helpline at 1-800-MEDICARE (1-800-633-4227) and a representative will be able to assist you. You can also visit the Medicare website to learn more about Medicare Supplement plans and to find a plan that meets your needs.

4) What is covered by a Medicare Supplement plan?

A Medicare Supplement plan, also known as Medigap, is a type of insurance policy that is designed to cover the out-of-pocket costs that are not covered by Original Medicare. This includes things like copayments, coinsurance, and deductibles. Medicare Supplement plans are offered by private insurance companies, and they can help to cover some of the gaps in coverage that are not covered by Original Medicare. These plans do not provide coverage for things like long-term care, vision or dental care, or hearing aids, so it's important to understand what is and is not covered before you decide to purchase a Medicare Supplement plan.

5) How do Medicare Supplement plans differ from Medicare Advantage plans?

Medicare Supplement plans and Medicare Advantage plans are both ways to get additional coverage beyond Original Medicare (Parts A and B). However, there are some key differences between the two types of plans.

One of the main differences is that Medicare Supplement plans are offered by private insurance companies, while Medicare Advantage plans are offered by Medicare-approved private insurance companies. Medicare Advantage plans are required to provide at least the same level of coverage as Original Medicare, but they may also offer additional benefits such as vision, dental, and hearing coverage.

Another key difference is that Medicare Supplement plans work alongside Original Medicare, while Medicare Advantage plans replace Original Medicare. This means that with a Medicare Supplement plan, you will still be enrolled in Original Medicare and will use your Medicare card to receive medical services. With a Medicare Advantage plan, you will use a different card and will typically receive your medical services through the private insurance company's network of providers.

In terms of cost, Medicare Supplement plans typically have a monthly premium in addition to the premiums you pay for Original Medicare. Medicare Advantage plans also have a monthly premium, but in some cases this may be lower than the combined premiums for Original Medicare and a Medicare Supplement plan. However, Medicare Advantage plans may also have additional out-of-pocket costs, such as copayments and coinsurance, for certain services.

Overall, the main difference between Medicare Supplement plans and Medicare Advantage plans is that Medicare Supplement plans offer additional coverage for out-of-pocket costs under Original Medicare, while Medicare Advantage plans provide an alternative way to receive your Medicare benefits. It's important to compare the different options and consider your own needs and preferences when deciding which type of plan is right for you.

6) Are there any limitations or exclusions with Medicare Supplement plans?

Yes, Medicare Supplement plans may have some limitations and exclusions. For example, most Medicare Supplement plans do not cover long-term care, dental care, vision care, or hearing aids. Additionally, some Medicare Supplement plans may have restrictions on certain medications or treatments. You should review the details of any Medicare Supplement plan you are considering carefully to make sure it meets your needs and covers the services and treatments you require. If you have questions about the limitations or exclusions of a specific Medicare Supplement plan, you can contact the insurance company that offers the plan for more information.

7) Can I switch from a Medicare Advantage plan to a Medicare Supplement plan?

Yes, you can switch from a Medicare Advantage plan to a Medicare Supplement plan. This is because Medicare Advantage plans are a type of Medicare health plan that is offered by private insurance companies, and Medicare Supplement plans are also offered by private insurance companies. If you are not happy with your current Medicare Advantage plan, or if you are looking for a plan that offers more coverage, you can switch to a Medicare Supplement plan. However, it's important to keep in mind that there are certain times when you can switch from one plan to another, and there may be certain restrictions or requirements that you need to meet in order to be eligible for a Medicare Supplement plan. It's always a good idea to speak with a Medicare representative or a licensed insurance agent to learn more about your options and to find the right plan for your needs.

8) How much does a Medicare Supplement plan cost?

The cost of a Medicare Supplement plan can vary depending on several factors, including the specific plan you choose, your location, and your age. Medicare Supplement plans are sold by private insurance companies, and the premiums for these plans are set by the individual insurance companies. You can contact the insurance company that offers the plan you are interested in to get a quote for the premium. In general, Medicare Supplement plans have a monthly premium in addition to the premium you pay for your Medicare Part B coverage. The amount of the premium can vary depending on the plan you choose and the insurance company offering the plan.

9) Can I have a Medicare Supplement plan and a Medicare Advantage plan at the same time?

No, you cannot have both a Medicare Supplement plan and a Medicare Advantage plan at the same time. This is because Medicare Supplement plans and Medicare Advantage plans are both types of insurance plans that are designed to provide coverage for the same benefit period. If you are enrolled in both a Medicare Supplement plan and a Medicare Advantage plan, you will have to choose one or the other. It's important to carefully consider your options and to choose the plan that best meets your needs and your budget. If you have any questions or concerns about your coverage, it's always a good idea to speak with a Medicare representative or a licensed insurance agent who can help you understand your options and make an informed decision.


These are just some examples of the questions that people often have about Medicare Supplement plans. It's always a good idea to do your own research and to talk to a licensed insurance agent if you have specific questions about your own situation.