Medicare A is known to be a type of hospital insurance. This will cover the stay in the hospital plus all of the other treatments that are usually done in hospitals. There are also times when it will cover the healthcare services that are being offered at home but not all of the services will be under insurance coverage. Medicare B is known to be a type of health insurance.
This will cover different visits to the doctor plus all of the outpatient treatments that may be needed such as flu shots, physical therapy, and so much more. If you are an inpatient at the hospital wherein Medicare can be used, you can have both types of coverages.