It’s worse than that — not only are the subcontracted entities often affiliated with the owners, but when your EMTs transport a resident, the SNF “holds their spot” (ie invoices the government) for 30 days.
It’s in their interest to dump the resident on the hospital and get paid for services not rendered. Also, as residents decline they need more care, are often on Medicaid (lower reimbursement), each time they go to the hospital there is a probability they they won’t come back, and will be replaced by a Medicare patient (Medicare pays for ~90 days) at a higher rate, and perhaps higher margin services like PT/OT.
It’s an evil system. Most of the people who died in NYC during early phases of COVID did because of intense lobbying to send them back to the SNF.