Medicare Supplement Plans "Medigap"

Medigaps ( or Medicare Supplements) are health insurance policies that offer "standardized" benefits to work with Original Medicare (not with Medicare Advantage). They are sold by private insurance companies. They pay part or all of the remaining costs after Original Medicare pays first. Medigaps may cover outstanding deductibles, coinsurance, and copayments. Medigaps may also cover health care costs that Medicare does not cover at all, like care received when travelling outside the United States. Remember, Medigaps only work with Original Medicare. If you have a Medicare Advantage Plan, you cannot buy a Medigap.
  Depending on where you live and when you became eligible for Medicare, you have up to 10 different Medigap policies to choose from: A, B, C, D, F, G, K, L, M, and N . Each policy offers a different set of "standardized benefits", meaning that policies with the same letter name offer the same benefits regardless of what company is offering it. Every company may not offer every Medigap plan option. Premiums can vary from company to company.
  People eligible for Medicare on or after January 1, 2020 cannot purchase Medigaps that pay for the Part B deductible. This includes Plan C and Plan F. If you became Medicare-eligible before January 1,2020, you will still be able to purchase Plan C or Plan F

Best Time to buy a Medicare Supplement "Medigap" policy

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Generally, the best time to enroll in a Medigap policy is during your open enrollment period. Under

 

federal law, you have a six-month open enrollment period that begins the month you are 65 or

 

older and enrolled in Medicare Part B. (Some states may have additional Open Enrollment

 

Periods.) If you delay enrollment in Part B because you have group health coverage through 

 

your or your spouse's current employment, your Medigap Open Enrollment Period won't start

 

until you sign up for Part B.

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  If you dont sign up for a Medigap policy during your open enrollment period you may run into

 

problems trying to buy one later.  Companies can refuse to sell you one later based off of medical

 

requirements.  Or impose a 6 month waiting period on pre-existing conditions