Physiologic Assessment Services (PAS) is a well established longstanding practice specializing in Intraoperative Neurophysiologic Monitoring (IONM). Founded in 1983, PAS is one of the largest providers of IONM services in the NY/NJ metropolitan area, as well as providing IOM services across the north east United States. PAS is proud of its outstanding reputation as a leader and innovator in the field of IONM. PAS is privileged to provide services in the finest hospitals and enjoys working closely with some of the world's leading surgeons.