From Architecture to Brain Imaging to Leader of a Major Academic Health System: John Mazziotta Talks with Johannes Czernin About an Evolving Career and Its Origins in Nuclear Medicine.

![Figure][1]</img> John Mazziotta, MD, PhD Dr. John C. Mazziotta has served as Vice Chancellor of UCLA Health Sciences and CEO of UCLA Health since 2015. In these roles, he oversees the David Geffen School of Medicine at UCLA, and he also is responsible for the UCLA Hospital and Clinic System