Dr. Nehrenz started his career as a respiratory therapist in 1976, then ECMO specialist.
With over 45 years in health care and administration, as well as medical and health sciences education, he has held a variety of positions including, assistant regional dean and assistant professor for medical education, assistant director of family medicine at Kirksville College of Osteopathic Medicine. At Samaritan Health System in Phoenix, he was administrative director of medical education and director of research with 16 medical residency programs and administrator of the Poison Control Center and Medical Toxicology, as well as administrator for the Phoenix Fire Department Health Center.
He relocated to Florida from Arizona in July 2002 as founding Director of the Doctor of Health Science program at the College of Allied Health (now the College of Health Care Sciences) at Nova Southeastern University. This was the first regionally accredited DHSc in the United States. Following this, he and the health science team developed multiple online and on-campus programs within the newly created department of health science including the MHS, BHS, and Vascular Sonography programs.
He was promoted to Founding Chair of Health Sciences in 2003 and Associate Dean for the college in 2004, full Professor of Health Sciences in 2007, then to Executive Associate Dean in 2009. In 2016, he moved to the College of Osteopathic Medicine where he was the Senior Associate Dean for Osteopathic Medical Education and Full Professor of Family Medicine. In Feb 2021, he was asked by the president to assume the position of interim dean for the Dr. Pallavi Patel College of Health Care Science, which he held until August 2023.
Dr. Nehrenz has been with NSU for 22 years and to date has lead the development or co-developed over 30 programs in diverse areas such as family medicine, prosthetic urology, nursing, respiratory therapy, anesthesia, nurse practitioner, physician assistant, diagnostic sonography, occupational therapy, osteopathic medicine, and health science. He also worked with leadership and faculty to establish health care programs in most of our regional campuses.