Was Chairperson of the Department of PM&R at the University of Medicine and Denistry of New Jersey for 25 years(1987-2012). He is Professor Emeritus. He was interim Dean of the School for 6 months. He was also the Chief Executive Officer of the Kessler Medical Rehabilitation Research and Education Corporation in West Orange, New Jersey and later served as its President and was the founding Director of the Kessler Center. He served as Chairpersonm of the American Board of PM&R for 5 years, and as Chair of the American Board of Medical Specialties from 2008-2010. He chaired theEducation Commission for Foreign Medical Graduates from 2005-2007. He is a past President of the Association of Academic physiatrists. He is a member of Ellis Island Metal of Honor, and the National Academy of Medicine. He as the 5th ISPRM President(2008-2010).