Steven Karr. His primary practice is as , also practicing as a Radiology: Body Imaging, a Radiology: Neuroradiology, a Radiology: Nuclear Radiology, a Radiology: Pediatric Radiology, a Radiology: Therapeutic Radiology, a Radiology: Diagnostic Ultrasound, a Radiology: Diagnostic Radiology, and a Radiology: Vascular & Interventional Radiology.