MediGap is guaranteed issue during open enrollment, which lasts for 6 months and begins on the first day of the month in which you're both 65 or older and enrolled in Medicare Part B. During this period, healthy applicants will pay the same amount in premiums that a person with health issues will pay, from any provider. Outside of this period, there is no guarantee that you will be able to get coverage.
***Those residing in Massachusetts, Minnesota, or Wisconsin, will have different MediGap plan options, as these three states do not offer the standardized 10 Medicare supplement insurance plans.