William Schaeffer, DO, is an Assistant Professor of Emergency Medicine at the Medical College of Wisconsin in Milwaukee, where he serves as the Residency Ultrasound Education Director and Assistant Residency Program Director. He earned his medical degree from Midwestern University and completed his Emergency Medicine residency and Advanced Emergency Ultrasound fellowship at the University of Michigan.

Dr. Schaeffer has a passion for medical education, particularly point-of-care ultrasound (POCUS), bedside teaching, and ultrasound-guided procedures. He has developed and led numerous ultrasound educational initiatives, presented at local, regional, and national conferences, and received multiple awards recognizing his excellence in medical education and POCUS instruction.