Guide to Medicare Supplement Insurance.
Insurance companies that sell Medicare supplements are required to issue policies to seniors who qualify for Medicare Part B because they have reached age 65, without regard to their current health status. This open enrollment period lasts for at least six months beginning with eligibility for Part B of Medicare. Companies may not refuse to issue a Medicare supplement to you or delay the issue of the policy as it is all based on your medical condition, health status, claims experience or receipt of health care. The company may impose a six-month pre-existing condition clause during the first six months of the policy. If you delay enrollment in Part B of Medicare and are covered by a plan provided by your or your spouses employer, you will have an open enrollment period starting with the month in which you no longer are covered by your employer insurance.