Independent medical examiners are physicians not otherwise involved in the care or treatment of a patient who conducts exams at the request of employers seeking to determine the health status of their employees. Deren was certified by the internationally recognized American Board of Independent Medical Examiners, which serves as the quality assurance organization for IME accreditation. He has been a member of the medical staff at WMHS since 1991 and is the medical review officer for the Occupational Health Program.