Dr. Popp is Professor of Medicine at Stanford University and Director of Ethics & Policy, for the Program in Biodesign.

Dr. Popp maintains a continuing interest in technology development for improved patient care. He has made significant contributions to the continuous improvement of ultrasonic diagnostic methods by several companies in areas including two-dimensional and three-dimensional echocardiography, Doppler ultrasound, color flow imaging, transesophageal and contrast echocardiography. He was one of the first to employ intravascular ultrasonic imaging.