What are Medicare Supplement Insurance plans (Medigap)?

Medicare Supplement Insurance Plans cover costs not included in Original Medicare Part A and Part B, including deductibles, copays, and coinsurance. Medicare Supplement Insurance Plans are also known as Medigap, because they cover the “gaps” in Part A and B. Although Original Medicare is administered by the federal government, Medigap plans are offered by health insurance companies approved by the federal government.

 

Who is eligible for Medigap?

To sign up for a Medigap plan you must already have Original Medicare Part A and B. Therefore, the same eligibility requirements for Part A and B apply to Medigap:

In general, people 65 or older are eligible for Medigap.

If you are 65 or older, you are eligible for Medigap if:

  • You currently receive retirement benefits from Social Security or the Railroad Retirement Board.
  • You are currently eligible for Social Security or the Railroad Retirement Board benefits but you haven’t applied for them yet.
  • You or your spouse previously had Medicare-covered government employment

If you are under 65, you are eligible for Medigap if:

  • You have received Social Security or the Railroad Retirement Board disability benefits for 24 months
  • You have End-Stage Renal Disease (ESRD) and meet certain criteria

 

What does Medigap cover?

Medigap covers some of the health care costs which Original Medicare Part A and B do not cover, including deductibles, copays, and coinsurance.

Most States have different Medigap plan options which are defined by a policy letter - A, B, C, D, F, G, K, L, M, N. The table below summarizes the different benefits each Medigap policy covers:

Medigap Benefits Medigap Policies - Covered Costs
A B C D F G K L M N
Part A coinsurance and hospital costs up to an additional 365 days after Medicare benefits are used up 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%
Part B coinsurance or copayment 100% 100% 100% 100% 100% 100% 50% 75% 100% 100%
Blood (first 3 pints) 100% 100% 100% 100% 100% 100% 50% 75% 100% 100%
Part A hospice care coinsurance or copayment 100% 100% 100% 100% 100% 100% 50% 75% 100% 100%
Skilled nursing facility care coinsurance 0% 0% 100% 100% 100% 100% 50% 75% 100% 100%
Part A deductible 0% 100% 100% 100% 100% 100% 50% 75% 50% 100%
Part B deductible 0% 0% 100% 0% 100% 0% 0% 0% 0% 0%
Part B excess charge 0% 0% 0% 0% 100% 100% 0% 0% 0% 0%
Foreign travel exchange (up to plan limits) 0% 0% 80% 80% 80% 80% 0% 0% 80% 80%
Out-of-pocket limit N/A N/A N/A N/A N/A N/A $5,240 $2,620 N/A N/A

Medigap plans do not include prescription drug coverage. You must sign up for a separate Part D plan for prescription drug coverage.

 

Is there a monthly premium cost for Medigap plans?

Yes, Medigap plans typically have a monthly premium which is determined by the health insurance company offering the plan.

 

When can I enroll in Medigap plans?

There is a 6 month initial enrollment period for Medigap. You can enroll starting the month of your 65th birthday to 5 months after your birthday month.

If you try to purchase a Medigap plan after this initial enrollment period, there is no guarantee that the insurance company will sell you the plan.


Enter your birthday month and year to learn when you can enroll in Medigap.



 

Is there a penalty for signing up late for Medigap?

No, signing up for Medigap is voluntary and there is not a penalty for signing up late. However, if you try to purchase a Medigap plan outside of your initial enrollment period, there is no guarantee that the insurance company will sell you the plan.

 

 

Some information shown on this page has been sourced from www.medicare.gov

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