1199/SEIU United Healthcare Workers East 300,000 members local health care workers' union local health care workers' union claims to be the largest union local local health care workers' union 1199SEIU Healthcare 1199 SEIU United Health Care Workers East local health care workers' union 1199/SEIU United Healthcare Workers East local health care workers' union Local 1199 local health care workers' union 1199 SEIU United Health Care Workers East local health care workers' union 1199 SEIU United Health Care Workers East local health care workers' union 300,000 members 1199SEIU Healthcare local health care workers' union 1199/SEIU United Healthcare Workers East SEIU local health care workers' union local health care workers' union local health care workers' union local health care workers' union local health care workers' union 1199SEIU Fund