What Does Medicare Part A And B Cover? 
Medicare Part A is called Hospital Insurance . With some exceptions , it covers inpatient services at hospitals , skilled nursing facilities and rehab facilities , as well as home health and hospice services . Medicare Part B is called Medical Insurance . Again , with some exceptions , it covers doctor 's services , durable medical equipment , hospital outpatient services , labs , mental health care , some preventative care , and some home health and ambulance services . All the services must be medically necessary and must be approved by Medicare to be covered . 