Laura L. Parnell, AuD, CCC-A Home / Laura L. Parnell, AuD, CCC-A Posted on March 21, 2019 by Callier Center for Communication Disorders Audiologist / Faculty Associate Doctor of Audiology – University of Arizona Certified by American Speech-Language-Hearing Association Licensed by the State of Texas Specialties: Educational audiology, electrophysiology, hearing aids