Medicare Supplement Plan F and Plan N are similar, except Plan F covers your Medicare Part B deductible. However, as of January 1, 2020, Plan F is no longer available to new Medicare enrollees.

Medicare Plan F and Medicare Plan N are two kinds of Medigap plans. Medigap is also known as Medicare Supplement Insurance.

Medigap is supplemental insurance that you can buy from a private insurer. Medigap covers some of the expenses that original Medicare doesn’t, such as:

  • deductibles
  • copays
  • coinsurance

Plan F and Plan N are popular Medigap options, but there are very specific differences between them. Plan N is one to consider if you are looking for an option to replace a Medigap Plan F.

If you are looking for a Medigap plan to give you peace of mind and work within your budget, here’s what you need to know.

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Medigap plans fill in some of the financial, out-of-pocket gaps you’re responsible for if you have Original Medicare (Part A and Part B). There are 10 Medigap plans to choose from, although not every plan is available in every area.

Out-of-pocket gaps can add up. For example, Original Medicare covers 80% of the cost of Medicare-approved medical services. Medigap plans can cover all or some of the remaining 20%.

Medigap plans have different premium costs, depending upon which you choose. They all offer the same basic benefits, although some plans provide more coverage than others. Medigap plans cover all or a percentage of:

As of January 1, 2020, Medigap plans no longer covered the Part B deductible for new enrollees. If you already had a Medigap plan that covered the Part B deductible, you could keep that plan. If you were eligible for Medicare before January 1, 2020, but did not enroll, you may still be able to purchase a Medigap plan that covers the Part B deductible.

Medigap Plan N is popular because its monthly premiums are relatively low compared to other Medigap plans. However, these monthly premiums vary widely.

Medigap Plan N covers:

Can I enroll in Medigap Plan N?

You can enroll in Medigap Plan N if you have Medicare parts A and B and live in a Plan N service area.

However, since private insurers sell Medigap plans, there are situations when you may be turned down for Medigap coverage.

If you are 65 or older, the best time to enroll in a Medigap plan is during the Medicare Supplement open enrollment or your Initial enrollment period.

You cannot be turned down for Medigap coverage or charged more during this time frame, even if you have a medical condition. This enrollment period begins the first day of the month in which you turn 65 or older and enroll in Medicare Part B. Medigap open enrollment lasts for 6 months from that date.

Medigap Plan F is sometimes referred to as a full coverage plan. Because Plan F’s coverage is comprehensive, it is very popular despite having higher monthly premiums than other Medigap plans.

Plan F’s monthly premiums vary. There is also a high-deductible version of Plan F, which has lower monthly premiums.

If you’re eligible for Plan F, you can shop for Medigap Plan F policies here.

Medigap Plan F covers:

  • Part A coinsurance and deductible
  • Part B deductible and excess charges
  • any hospital costs you incur up to an additional 365 days after using up your Medicare benefits
  • Part A hospice care coinsurance or copayment
  • Part B coinsurance or copayment
  • first 3 pints of blood
  • coinsurance for a skilled nursing care facility
  • up to 80% of foreign travel emergency medical care (based on plan limits)

Can I enroll in Medigap Plan F?

Plan F is no longer available to new Medicare enrollees unless they turned 65 before January 1, 2020. If you already have Plan F, you can usually keep it.

Plan N premiums are typically lower than Plan F premiums. This means you spend less out of pocket monthly with Plan N than you will with Plan F. However, Plan F covers more out-of-pocket expenses.

Plan F may be a better choice if you know that you will have many medical expenses throughout the year. If you expect your medical costs to be lower but want to ensure peace of mind in case of medical emergencies, Plan N may be a better choice.

Another critical difference between the plans is that Plan F pays the $240 Part B annual deductible, and Plan N doesn’t.

The table below shows an out-of-pocket cost comparison for Plan N vs. Plan F in 2024:

BenefitPlan N
out-of-pocket costs
Plan F
out-of-pocket costs
Part A hospice care $0 coinsurance or copayment$0 coinsurance or copayment
Part A skilled nursing facility care$0 coinsurance $0 coinsurance
Part B medical carecoinsurance after Part B deductible/up to $20 per office visit$0 coinsurance or copayment
durable medical equipment$0 after Part B deductible$0 coinsurance
ER visits$50 copays for ER visits that don’t require hospital admission$0 coinsurance
emergency care outside of U.S.20% coinsurance 20% coinsurance
Part B excess charges 100% of all excess charges$0

What about monthly plan costs?

Monthly premium costs can vary significantly based on your location. Prices also differ within cities based on county or ZIP code.

The costs provided here are averages and will give you an idea of what you can expect to spend on monthly premiums for Plan N and Plan F in 2024:

Plan N Plan F
Chicago, IL$88–$590$137–$968
Albuquerque, NM$76–$551$117–$713
New York, NY$220–$483$359–$843
Los Angeles, CA
$114–$912
$178–$1,368

Medigap (Medicare supplement insurance) helps beneficiaries pay for items that Original Medicare does not cover. You purchase it through private insurers.

The best time to sign up for Medigap is during your Medicare Supplement open enrollment period.

Two popular plans are Plan F and Plan N. Plan F is a full coverage option that is popular, but as of January 1, 2020, it was no longer available to most new beneficiaries.

Not everyone is eligible for both plans.