Most people don't pay a monthly premium for Part A (sometimes called "premium-free Part A"). If you buy Part A, you'll pay up to $458 each month in 2020. If you paid Medicare taxes for less than 30 quarters, the standard Part A premium is $458 in 2020. If you paid Medicare taxes for 30-39 quarters, the standard Part A premium is $252 in 2020.
Most people pay $144.60 each month (or higher depending on your income).
$198. After your deductible is met, you typically pay 20% of the Medicare-approved amount for most doctor services (including most doctor services while you're a hospital inpatient), outpatient therapy, and durable medical equipment.
Part C monthly premium varies by plan