Every Medigap policy must follow federal and state laws designed to protect you, and it must be clearly identified as "Medicare Supplement Insurance." Insurance companies can sell you only a "standardized" policy identified in most states by letters.

All policies offer the same basic benefits but some offer additional benefits, so you can choose which one meets your needs. 

Each insurance company decides which Medigap policies it wants to sell, although state laws might affect which ones they offer. Insurance companies that sell Medigap policies:

• Don't have to offer every Medigap plan
• Must offer Medigap Plan A if they offer any Medigap policy
• Must also offer Plan C or Plan F if they offer any plan

Note

As of January 1, 2020, Medigap plans sold to new people with Medicare aren't allowed to cover the Part B deductible. Because of this, Plans C and F are not available to people new to Medicare starting on January 1, 2020. If you already have either of these 2 plans (or the high deductible version of Plan F) or are covered by one of these plans before January 1, 2020, you’ll be able to keep your plan. If you were eligible for Medicare before January 1, 2020, but not yet enrolled, you may be able to buy one of these plans.

The chart below shows basic information about the different benefits Medigap policies cover.

Note

The Medigap policy covers coinsurance only after you've paid the deductible (unless the Medigap policy also pays the deductible).