Most people get both Medicare Part A and Medicare Part B as soon as they are eligible, which is usually the month they turn 65. Part A is for hospital admissions. Part B is for everything else: doctors, labs, emergency room visits, outpatient procedures.

Part A usually costs nothing. Part B currently costs $104.90 a month for the majority of beneficiaries. This premium can be more for higher-income households, or less for people who qualify for “Extra Help”.

If you’re receiving a Social Security check, Medicare will take the Part B premium directly out of that. Otherwise, Medicare will bill you quarterly.

What is Traditional or Original Medicare?
Part A and Part B together are “Original Medicare,” or “Traditional Medicare.”