Medicare is a health insurance program in the United States, primarily for people who are 65 or older, younger people with disabilities, and those with End-Stage Renal Disease. Medicare does not cover all medical expenses, so many people opt for Medicare Supplement plans, also known as Medigap plans. These plans assist with the costs that are not covered by Medicare. This article will discuss Medicare Supplement plan coverage, including what they cover and how to choose the right plan for you.

What are Medicare Supplement plans?

Medicare Supplement plans are private insurance policies that fill in the gaps left by Original Medicare, covering expenses like deductibles, copayments, and coinsurance. There are ten standardized Medigap plans with designated letters from A to N, each with varying benefits and coverage options. While every plan provides basic coverage, some also offer additional benefits such as foreign travel emergency coverage.

What do Medicare Supplement plans cover?

Medicare Supplement plans offer a range of coverage options that vary depending on the plan you choose. Medicare Part A deductibles, Medicare Part B deductibles, the cost of the first three pints of blood you receive each year, and Medicare Part N deductibles are all covered in full by Medicare Supplement Plans A through N. These policies pay for the Part A deductible as well as skilled nursing facility care and hospice care. Medigap plans C and F cover the Part B deductible, while plans F and G cover Part B excess charges. Additionally, plans C, D, F, G, M, and N offer coverage for foreign travel emergencies up to plan limits.

It’s important to note that Medicare Supplement plans do not cover prescription drugs. If you need help paying for your prescriptions, you must join a Medicare Part D plan.

How to choose a Medicare Supplement plan

It can be difficult to decide on a Medicare Supplement plan. Some advice to help you choose wisely:

  1. Determine what benefits you need: The first step in choosing a Medigap plan is to determine what benefits you need. Consider your health status and how often you visit the doctor. Do you need coverage for skilled nursing facility care or foreign travel emergencies?
  2. Compare plans: Once you know what benefits you need, it’s time to compare plans. Remember that all Medigap plans are standardized, so the benefits will be the same regardless of your chosen insurance company. However, the cost of the plans may vary, so it’s important to shop around.
  3. Consider the cost: Medigap plans can be expensive, so it’s important to consider the plan’s cost. Premiums can vary based on your age, location, and health status. If you and your spouse enroll in separate Medigap policies from the same insurance provider, you may be eligible for a premium discount.
  4. Look at the insurance company’s reputation: When choosing a Medigap plan, it’s important to choose a reputable insurance company. Check the company’s ratings and reviews and ensure they have a good track record of paying claims.

Be aware of enrollment windows: you can sign up for Medigap coverage during the six months beginning with the month you turn 65 and enroll in Medicare Part B. You can enroll in a Medigap policy during this time without fear of being denied or charged more due to a preexisting ailment. You may be possible to enroll in a Medigap plan after your open enrollment period has ended, but doing so may require you to undergo medical underwriting, which could result in a higher premium.

Benefits of Medicare Supplement Plans

Medicare Supplement plans offer many benefits to people who are enrolled in Original Medicare. One major advantage is that they can be used to supplement what is not covered by traditional Medicare. For example, if you need to go to the hospital, Medicare will cover the cost of your stay, but you will still be responsible for the Part A deductible, which is $1,484 per benefit period in 2023. A Medicare Supplement plan can help cover this cost and other out-of-pocket costs such as coinsurance and copayments.

Medicare Supplement plans are useful because they let you visit any doctor that takes Medicare patients. If your doctor does not participate in the assignment program, you may have to pay more to see them with Original Medicare. A Medicare Supplement plan lets you see any Medicare-accepting doctor without significant out-of-pocket payments.

Costs of Medicare Supplement Plans

The cost of a Medicare Supplement plan can vary widely from person to person based on criteria including age, region, and health. It’s important to compare plans from different insurance companies and choose a plan that fits your budget.

In addition to the monthly premium, you may also have to pay a one-time enrollment fee and an annual deductible. The annual deductible for Medigap plans F and G is $203 in 2023. Once you meet the deductible, the plan will start paying for your out-of-pocket costs.

Enrollment Periods for Medicare Supplement Plans

Medicare Supplement plans are best purchased during open enrollment. Six months starting in the month you become Medicare Part B eligible at 65. During this time, you can enroll in a Medigap plan regardless of your health status, and you won’t be charged more because of it.

Medical underwriting may apply if you try to enroll in a Medicare Supplement plan outside of the open enrollment period. In other words, the insurance firm can look into your health history and make decisions about whether or not to provide coverage to you.

How to Switch Medicare Supplement Plans

During specific enrollment periods, current Medicare Supplement plan enrollees have the opportunity to switch to a different plan. During your open enrollment period or a special enrollment period, if you fulfill certain requirements, you can change to a different Medigap plan.

It’s crucial to remember that switching Medigap plans could subject you to medical underwriting, which could result in being denied coverage or having your premiums increased due to your health history.


Medicare Supplement plans can help pay for some of the costs that Original Medicare doesn’t cover. Knowing what each plan offers is important and picking one that works for you. Remember to compare plans, consider the cost, and choose a reputable insurance company. By following these tips, you can find the right Medigap plan to help protect your health and your finances.


What is a Medicare Supplement plan?

A Medicare Supplement plan, also known as Medigap, is a type of health insurance policy that helps cover some of the out-of-pocket costs associated with Original Medicare.

What does a Medicare Supplement plan cover?

Medicare Supplement plans can cover a variety of expenses such as deductibles, copayments, and coinsurance associated with Original Medicare. Some plans may also cover additional benefits, such as emergency medical care while traveling abroad.

Do I need a Medicare Supplement plan if I have Original Medicare?

No, you are not required to have a Medicare Supplement plan. However, these plans can help reduce your out-of-pocket costs and provide additional benefits that Original Medicare does not cover.

Can I enroll in a Medicare Supplement plan at any time?

No, there are specific enrollment periods for Medicare Supplement plans. Your Medigap Open Enrollment Period begins on the month you become eligible for Medicare Part B and continues for the following six months.

Can I switch Medicare Supplement plans?

Yes, you can switch Medicare Supplement plans at any time. However, if you change plans outside of your Medigap Open Enrollment Period, you may be required to undergo medical underwriting.

Will my Medicare Supplement plan cover prescription drugs?

No, Medicare Supplement plans do not cover prescription drugs. Prescription drug coverage is not included in Original Medicare, so you’ll need to sign up for a Medicare Part D plan.

Can I use my Medicare Supplement plan outside of the United States?

It depends on the plan. Some Medicare Supplement plans offer coverage for emergency medical care while traveling abroad, but not all plans do. Be sure to check your plan’s coverage before traveling.

How much does a Medicare Supplement plan cost?

The cost of a Medicare Supplement plan varies depending on the plan type, location, and insurance company. You will typically pay a monthly premium in addition to your Medicare Part B premium.

To what extent may I combine Medicare Advantage and Medicare Supplement coverage?

No, you can’t sign up for Medicare Advantage and a Medicare Supplement at the same time. You must choose one or the other.

What happens if I don’t enroll in a Medicare Supplement plan?

If you don’t enroll in a Medicare Supplement plan, you may be responsible for paying out-of-pocket costs associated with Original Medicare. These expenditures can soon accumulate, perhaps becoming unmanageable.