When we use a negative construction (with not) in the main clause, until means 'not before'. I won't (will not) start cooking until you come home. until three kilometres.
Medicare Part A is hospital insurance that covers inpatient hospital care and certain home care. Medicare Part A is usually free if you or your spouse paid Medicare taxes while working. If not, it can cost up to $413 each month in 2017. Hospital and skilled nursing facility stays come with deductibles and co-insurance.
There are no Medicare premiums for Part A coverage unless neither the insured nor his or her spouse has worked 40 or more quarters of Medicare-covered employment. Part A covers the majority of the cost associated with hospital visits once the annual deductible ($1,100 for a hospital stay under 60 days) has been met.