USC-CHLA Center for Childhood Communication

John Tracy Clinic

About the Center

The USC-CHLA Center for Childhood Communication provides audiology and speech language pathology services to children with hearing loss from birth to adulthood, including access to national clinical trials and state-of-the-art rehabilitative care. The center builds on the world-renowned clinical and scientific expertise of the Department of Otolaryngology-Head & Neck Surgery at Keck Medicine of USC. Its mission is to help children with hearing loss achieve developmental, academic and social outcomes that are commensurate with their hearing peers through a comprehensive program that integrates research, clinical services and education.

Fully staffed by University of Southern California faculty, the USC-CHLA Center for Childhood Communication is able to test the degree and type of hearing loss a child may have; fit assistive devices such as hearing aids, bone conduction devices and cochlear implants; and assess listening and communication skill development. The center also participates in various National Institutes of Health-funded research projects that focus on hearing and speech development, in hopes of developing innovative technologies and procedures for people with profound hearing loss.

Call to schedule an appointment:
(800) USC-CARE (800-872-2273)
USC-CHLA Center for Childhood Communication

806 West Adams Boulevard Los Angeles, CA 90007

Our Neighbor,
The John Tracy Clinic

Our neighbor, the John Tracy Clinic, helps families with young children suffering from hearing loss. They provide audiology, education and support services to more than 25,000 families every year. They are one of the largest private providers of these types of services and have gained international recognition for their efforts.
Please click here for more information and to visit their website.


John K. Niparko, M.D.

John K. Niparko, M.D., is the Chair of the Department of Otolaryngology-Head & Neck Surgery at the Keck School of Medicine of the University of Southern California. Dr. Niparko comes to USC from Johns Hopkins University, where he was the inaugural George T. Nager Professor and director of the Division of Otology, Neurotology and Skull Base Surgery.

In 1993 he launched The Listening Center at Johns Hopkins—a center of clinical services and research that has garnered an international reputation for its excellence in cochlear implantation, including advanced surgical techniques and multi-disciplinary approaches to rehabilitation. The Listening Center sponsored NIH-supported research and participation in clinical trials of new generations of implantable devices. The FDA is developing models of device comparison based on these datasets.

Niparko has received numerous awards, including the Deafness Research Foundation’s Annual Hearing Research Award in 2001. He is a past president of the American Otological Society—the oldest specialty society in the field—and currently serves on the council of the National Institute on Deafness and Other Communication Disorders of the NIH. He remains on the board of the River School of Washington, D.C., an inclusive educational model for children with hearing loss offering full immersion in classes with typical developing, hearing peers.

Dr. Niparko also has a clinical interest in the management of mid- and posterior-skull base disorders. He has published on a range of topics related to the management of acoustic tumors and malignancies of the temporal bone. Among the four books he has edited is the Atlas of Skull Base Surgery (Parthenon Press).

A native of Detroit, Niparko received his bachelor’s degree and medical degree with distinction from the University of Michigan, where he also completed his residency in otolaryngology-head and neck surgery and a fellowship in otology, neurotology and skull base surgery. He is an author or co-author of more than 180 peer-reviewed reports and has served as editor-in-chief of the Journal of Otology & Neurotology since 2006.

Rick A. Friedman, M.D., Ph.D.

Rick A. Friedman, M.D., Ph.D., the division director - Otology, Neurotology and Skull Base Surgery - is an internationally renowned neurotologic surgeon and investigator. Specializing in disorders of the ear and skull base, Dr. Friedman is a leading authority on the treatment of skull base tumors, including acoustic neuroma, and is renowned for his work in the genetics of hearing loss.


Margaret Winter, M.S., CCC-A

Margaret Winter, M.S., CCC-A, Board Certified in Audiology, has been a licensed clinical and dispensing audiologist for more than 35 years. Her experience includes pediatric diagnostic evaluations, hearing aid and cochlear implant services and, most recently, programming and progress evaluations with young children who use auditory brainstem implants. She is an adjunct faculty member of the Mount St. Mary’s College, providing instruction in pediatric audiology, amplification and cochlear implants to graduate students in the John Tracy Clinic deaf educators program. She is a frequent presenter on cochlear implants in children, lecturing at national and international cochlear implant symposia, for local school district staff inservices, and for Teacher In-Service and Educational Support/Listening and Spoken Language Specialist continuing education workshops. She has also published and presented extensively on pediatric hearing screening, diagnostic assessments, and hearing aid fitting in children.

Janice Loggins, M.S., CCC-A

Janice Loggins has been a licensed clinical and dispensing audiologist since 1986. She received her master's degree from California State University Los Angeles. She is a Fellow in the American Academy of Audiology and holds a Certificate of Clinical Competence from the American Speech Language and Hearing Association. In her clinical practice, Ms. Loggins has worked exclusively with children since 1993. She is an adjunct faculty member of the California Lutheran University, School of Education providing instruction in pediatric audiology, amplification and cochlear implants to graduate students in the Deaf/Hard of Hearing Oral educators program. Previously, she worked as a sign language interpreter in a variety of settings including universities and colleges as well as the California Youth Authority where she provided direct services to incarcerated youth who were deaf. She was a co-investigator for Clarion, Nucleus 24, and Med-El cochlear implants during the pediatric FDA clinical trials for these devices. Lecture experience includes in- service training for educators, educational audiologists and speech language pathologists, medical students, and parents

Chelsea Cole, AuD

Chelsea Cole received her clinical doctorate in audiology at the University of Texas at Austin. She is a licensed audiologist and a fellow of the American Academy of Audiology. Dr. Cole received her undergraduate degree from Montana State University in Elementary Education. Her most recent research focused on the effects of amplification strategies for persons with single sided deafness in the presence of background noise. Other research participation includes investigating the integrity of anticipatory coarticulation in fluent and non-fluent tokens of adults who stutter, published in the Clinical Linguistics & Phonetics Journal. Her professional interests include newborn hearing screenings, pediatric audiology, hearing aid technology and cochlear implants.

Jamie Glater, AuD

Jamie Glater is a licensed dispensing audiologist. She pursued her education at Washington University School of Medicine's Central Institute for the Deaf, where she received a doctorate in audiology. Her areas of research have included efficacy of high frequency tympanometry and working with children using auditory brainstem implants (ABI). Glater's clinical interests are music perception with cochlear implants; working to optimize cochlear implants and hearing aid fittings in the pediatric population; diagnostic audiology; and working with and supporting families.

Kristina Celani Rousso, AuD

Kristina Celani Rousso received her clinical doctorate in Audiology from the joint doctorate program at San Diego State University and University of California San Diego. She is a licensed dispensing audiologist and holds professional memberships with the American Academy of Audiology and American Cochlear Implant Alliance. Dr. Rousso has participated in a number of research studies looking at the effects of intratympanic injections for the treatment of hearing loss in autoimmune inner ear disease and hearing fluctuations in Meniere’s disease. She has published articles in peer reviewed journals looking at the referral methods of primary care physicians for patients with hearing loss. Dr. Rousso’s clinical interests include pediatric cochlear implants, bimodal fittings, and the effects of multilingualism on speech and language development of children with cochlear implants.

Speech Language Pathologists

Meredith Burke, CCC-SLP

Meredith Burke graduated from James Madison University with a Bachelor of Arts Degree in Communication Sciences and Disorders and received her Master's Degree in Speech, Language and Hearing Sciences from the University of Colorado at Boulder. For 7 years, she worked as a speech-language pathologist with infants, children and young adults with hearing loss in the Denver metro area. She provided speech, auditory and language therapy for students with cochlear implants and hearing aids in a center-based deaf and hard of hearing (D/HH) elementary and high school program. She also worked as family facilitator and early interventionist for the Colorado Home Intervention Program (CHIP), serving birth to three year old D/HH children and their families.

Dianne Hammes Ganguly, MS, CCC-SLP

Dianne Hammes Ganguly has more than 15 years of experience as a speech language pathologist working with children who have hearing loss. She previously worked in Illinois for 11 years with the Carle Foundation Hospital's Expanding Children's Hearing Opportunities (ECHO) program. Dianne specializes in diagnostic evaluations in children with hearing loss, and is experienced in utilizing a variety of communication modes including auditory/oral, auditory verbal, cued speech and total communication. Her research has focused on language development in children who have had cochlear implants implanted at 18 months of age or younger. She has also been involved with longitudinal research on the language, social-emotional or cognitive skill development of children who use hearing aids or cochlear implants.

Educational Liaison

Debbie Schrader, Educational Liaison

Debbie Schrader is a certified teacher of the deaf and hard of hearing with more than 30 years of experience in the classroom. Her teaching experience includes working as an early interventionist and as a classroom teacher for preschool, middle and high school students with hearing loss in public and private schools in Indiana, Illinois, Texas and Wisconsin. Mrs. Schrader served as a program support specialist and coordinating teacher in the School District of Waukesha's Statewide Auditory Oral Demonstration Project, working with the Wisconsin Department of Public Instruction, the Medical College of Wisconsin Koss Cochlear Implant Team, the University of Wisconsin-Milwaukee and the University of Wisconsin-Madison. She provides aural rehabilitation, listening and spoken language intervention to children with hearing loss, while working toward her certification as a certified auditory verbal therapist. She previously developed and coordinated a summer literacy intervention program supporting the development of emergent literacy skills in culturally and linguistically diverse children with hearing loss.

Doctoral Students

Lauren Placke

Lauren Placke graduated from Hardin-Simmons University in Texas with a Bachelor of Behavioral Science in Speech, Language, and Hearing Sciences in 2011. She is currently completing her full time clinical placement toward her doctoral degree in audiology at the USC-CHLA Center for Childhood Communication, and will receive her AuD from Lamar University in May, 2015. Ms. Placke’s clinical interests involve pediatric cochlear implants, pediatric hearing aid fitting and verification, bimodal fittings, and optimizing early intervention strategies for children with hearing loss.

Schedule a Visit





Department of Otolaryngology - Head & Neck Surgery
University of Southern California
1520 San Pablo Suite 4600
Los Angeles, CA 90033
(323) 442-5790​


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