Generally, no. Medicare does not cover the room-and-board or custodial-care costs of assisted living or memory care. Medicare's coverage in senior care is generally limited to short-term skilled nursing/rehab stays following a qualifying hospital admission, home health care ordered by a physician, and hospice care.
The detail behind the number
This is one of the most common and costly misunderstandings families run into, often discovering the gap only after a hospital discharge planner starts talking about 'next steps.' Whether a Medicare beneficiary qualifies for Medicare's skilled-nursing benefit at all often depends on a technical distinction -- whether the preceding hospital stay was billed as an inpatient admission or as 'observation status' -- so ask that question explicitly and in those exact words at whichever Milwaukee-area hospital system (Froedtert & MCW, Ascension Wisconsin, or Advocate Aurora/Advocate Health) is discharging your family member, since it directly affects what Medicare will and won't pay for afterward.