The costs of Medicare vary according to the different plans and a beneficiary's annual income. Medicare Part A, which covers inpatient hospitalization, has no monthly premium for most people, although it requires a $1,260 deductible, according to Medicare.gov.
Medicare Part B, which covers doctor visits, costs $104.90 per month for most people, as of 2015. Part B requires a $147 annual deductible. Part D covers prescription medications, and the monthly premium varies according to the plan, although the annual deductible is a maximum of $320 for all plans, according to the American Association of Retired Persons. The premiums for Parts B and D are higher for single taxpayers making more than $85,000 a year and for married couples making more than $170,000.