Dr. Wisner received his Doctor of Veterinary Medicine from UC Davis in 1983. Following 5 years in private practice he returned to UC Davis and completed a radiology residency, becoming board certified in the American College of Veterinary Radiology in 1991.  He held a joint faculty appointment with the UC Davis Schools of Veterinary Medicine and Medicine from 1992-1997. He served as head of radiology at the Ohio State College of Veterinary Medicine from 1997 until 2000 at which time he returned to UC Davis. Dr. Wisner was a professor of diagnostic imaging and Chair of the Department of Surgical and Radiological Sciences at the UC Davis School of Veterinary Medicine and held a joint appointment in the UC Davis, School of Medicine, Department of Radiology.  His clinical interests are in computed tomography and magnetic resonance imaging and he has research interests in selective and targeted delivery of contrast media and functional imaging. In addition to clinical, research and instructional duties, he was the Associate Hospital Director for Imaging Services in the UC Davis Veterinary Medical Teaching Hospital and Director of the UC Veterinary Center for Clinical Trials. During his career, he has authored over 150 peer-reviewed journal articles, contributed to more than 25 book chapters, written 1 textbook (Atlas of Small Animal CT & MRI) and has trained over 50 diagnostic imaging residents. He continues to provide clinical instruction (veterinary professional students and residents) in the UC Davis Veterinary Teaching Hospital.