Stockton Staff

The University of the Pacific Hearing and Balance Center provides comprehensive and professional audiological care, from prevention to rehabilitation, for individuals of all ages with hearing concerns. Our goal is to optimize your hearing and make listening effortless, ensuring an improved quality of life through better hearing.

Clinical Faculty

Gail Amornpongchai, Au.D.

Dr. Amornpongchai is the clinical director of audiology for the Stockton Hearing and Balance Center. She received her Bachelor of Science from Northwestern University and her Doctor of Audiology degree from Vanderbilt University. She is also a fellow of the American Academy of Audiology. She enjoys working with both adult and pediatric patients and is highly skilled and knowledgeable in all areas of diagnostic evaluation and hearing aid technology. She also specializes in the evaluation of patients with dizziness and balance disorders. Dr. Amornpongchai speaks both English and Thai.

Stephanie Raval, Au.D.

Dr. Stephanie Raval is an audiologist at the University of the Pacific Hearing & Balance Center. She earned her Doctor of Audiology degree at University of California at San Diego and San Diego State University. She received additional clinical training at Lucile Packard Children’s Hospital at Stanford and Children’s Choice for Hearing and Talking (CCHAT) center. Dr. Raval is a fellow of the American Academy of Audiology.

Amber Sulahria

Amber Sulahria is a fourth-year audiology doctoral candidate at the University of Arizona, currently completing her externship at the University of the Pacific Hearing and Balance Center. Amber aspires to provide services in hearing healthcare and improve patient quality of life. As a graduate student clinician, Amber has experienced various audiology rotations and gained distinctive skills in a variety of settings, including university clinics and hospitals. She is an alum of the Leadership Education in Neurodevelopmental and Related Disabilities (ArizonaLEND), where she participated in interdisciplinary and leadership training to coordinate and manage groups of individuals in a healthcare setting. Amber defended her Audiology Doctoral Project, which examined pathways to hearing screenings in geriatric primary care practice and provided recommendations for improving access to hearing health care via primary care practitioners. She also obtained additional training and certification in the Bilingual Certificate Program, which provided hearing health services to culturally and linguistically diverse patients. Amber is passionate about being able to provide services to both the adult and pediatric population in various areas including diagnostics, hearing aids, cochlear implants, and aural rehabilitation. She hopes to participate in humanitarian Audiology by providing hearing healthcare services in countries that may not have the resources for such services. Amber is a highly-motivated graduate clinician and eager to expand her impact as a future Audiologist.  


Lily Lye, Hearing Specialist

Lily Lye is the hearing specialist at the University of the Pacific Hearing and Balance Center. She assists with the testing, fitting and programming of the hearing aids in order to ensure patients receive the best devices for their type and degree of hearing loss.


Bob Hanyak, Au.D.

Dr. Bob Hanyak is an associate professor of audiology and chair of the department of speech-language pathology at the University of the Pacific. Dr. Hanyak is a fellow of both the American Speech-Language-Hearing Association and the American Academy of Audiology as well as the recipient of several university teaching awards. His areas of clinical interest are aural rehabilitation, amplification and pediatric diagnostic audiology.

Contact Us Today!
  • Please prove you are human by selecting the Icon