What Does Medicare Supplement Plan N Cover? 
Medicare supplement plan N covers the same things as Medigap plans F and G , but with a different level of benefits . Medicare supplement plan N acts to fill the `` gaps '' in Medicare Part A and Part B. Plan N pays your Part A deductible and coinsurance . Plan N pays a portion of your Part B expenses above the deductible but requires you to pay a copay for outpatient services and ER visits . 