- Dr. Gregory R. Zaccone – Dr. Gregory R. Zaccone founded SPECTRUM in 2004 and serves as the company’s president. As of 2003 he has been a Licensed Physical Therapist in the state of NJ. In June of 2008, Dr. Zaccone became one of a select group of therapists in the state of NJ to receive a Board Certification as a Clinical Specialist in Sports Physical Therapy. He is an Advanced Clinician for hip and joint conditions through the Hospital for Special Surgery. Dr. Gregory Zaccone received both his Doctorate and Masters of Science degrees in Physical Therapy from Columbia University’s College of Physicians and Surgeons. He also graduated from the University of Delaware with a Bachelor of Science degree in Athletic Training.