[2][4] There, he served as the inaugural George T. Nager Professor and director of the Division of Otology, Neurotology and Skull Base Surgery from 2009 to 2012.
In 2013, Niparko joined the University of Southern California where he was chair of the USC Keck School of Medicine's Caruso Department of Otolaryngology–Head and Neck Surgery.
Niparko conducted research demonstrating that cochlear implants were highly cost effective in children and adults.
[6] He led efforts to establish a new national organization to focus on the underutilization of cochlear implants in the United States.
The John Niparko Lecture at the annual Cochlear Implant Symposium was established by the American Cochlear Implant Alliance in his honor, with ARPANET (Internet) co-inventor Vint Cerf delivering the Inaugural [7] On April 25, 2016, Niparko died of complications from treatment from a rare genetic-based form of lymphoma at the University of Southern California's Keck Medical Center.