Get to Know Your Team: 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. Learn About a Day in the Life of a Medical Assistant: ResponsibilitiesThe Medical Assistant provides superior patient care and performs administrative and delegated clinical tasks that support patients in a clinic-based environment as part of a care team led by the physician and/or advanced practice provider.