Federal regulators on Thursday said they are cutting off Medicare, a crucial financial lifeline, to the Hollywood Hills nursing home where residents died from sweltering heat after Hurricane Irma knocked out power to the facility’s air conditioning and forced an emergency evacuation in September.

The Centers for Medicare and Medicaid Services, or CMS, also imposed a penalty of $20,965 a day for the three days that the Rehabilitation Center at Hollywood Hills lost power to its air conditioning unit, from Sept. 10 — when Irma made landfall in Florida — to Sept. 13, when the facility was evacuated as its residents wilted.

The nursing home has been closed since the evacuation. But in a letter to its administrator, Jorge Carballo, a CMS official said the agency was suspending…