Hackensack Meridian Mountainside Medical Center is an 820,000-square-foot facility that offers the latest medical programs, cutting-edge technology, and patient-focused care that includes 365 beds, 1,200+ employees and a 27-bed Emergency Room/Fast Track Unit. Responsibilities: The Registered Nurse— Inpatient Behavioral Health, will direct and oversee the care provided by other caregivers through delegation, validation, evaluation, and coordination.