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, Labor and Delivery, is responsible for the delivery of patient care through the antepartum and postpartum phases utilizing the nursing process of assessment, planning, implementation, and evaluation.