Plan D
Medicare Supplement Insurance Plan D is one of 10 Medigap plans available on the market whose main task is covering certain costs for individuals that haven’t been covered by Medicare Part A and Part B. Like other Medicare Supplement plans, Medigap Plan D is sold by private health insurance companies.
Keep in mind that Medigap “Plan D” is not the same thing as Medicare Part D. Plan D is a type of supplemental insurance that fills some coverage gaps in Original Medicare. Medicare Part D is a prescription drug coverage and a prescription drug benefit, available through Medicare Prescription Drug Plans and Medicare Advantage Prescription Drug plans.