The Noninvasive Cardiology Department operates from several locations on the Hackensack University Medical Center campus. Outpatient Cardiac Testing: Outpatient cardiac testing is conducted in The Heart Center, Suite 200, on the second floor of the Medical Plaza Building at 20 Prospect Avenue. Appointments may be scheduled by calling: Phone: 201-996-3800 Fax: 201-996-3801 Inpatient Cardiac Testing: Inpatient testing is coordinated in Noninvasive Cardiology’s hospital office, which is located on the ground floor of the Main wing at 30 Prospect Avenue. Phone: 201-996-2310 Fax: 201-487-3834