What  you say violates the law.  One example is the federal Emergency Medical Treatment and Labor Act (EMTALA).  "It requires any hospital that participates in Medicare and provides emergency services to provide (1) an appropriate medical screening examination to anyone who comes to its emergency department asking for treatment and (2) necessary stabilizing treatment or transfer to another medical facility if the examination reveals an emergency medical condition."
https://www.cga.ct.gov/2003/olrdata/ph/rpt/2003-r-0621.htm