WHAT IS MEDICARE PART A? Medicare Part A is the hospital insurance portion of Medicare. It covers inpatient care in hospitals. This includes critical access hospitals and inpatient rehabilitation facilities. It also covers inpatient stays in a skilled nursing facility (not custodial or long term care), hospice care services, home health care services, and inpatient care in a religious non-medical health care institution. If you have Part A, “HOSPITAL (PART A)” is printed o