Stockton Staff

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.

Munirah was born and raised in the Bay Area, California. She received her Bachelor of Science in Biology, with a minor in Chemistry, from the University of San Francisco and her Doctor of Audiology degree from the University of the Pacific. Munirah enjoys working with diverse populations and helping people from all walks of life. She has experience in adult and pediatric diagnostic testing and amplification. Her goal is to help patients improve their quality of life by providing patient-centered care. 

Anna Walters is a 3rd year audiology extern from the University of the Pacific. She earned her bachelor’s degree in speech pathology and audiology from the University of Wyoming in 2020. Anna has a passion for audiology that began when she accompanied her baby brother to his cochlear implant evaluation appointment. Throughout her time at the University of the Pacific, Anna has worked with faculty members on multiple research projects. Anna presented some of these research findings at the 2021 CAA conference and the 2022 AAA conference. Anna’s favorite part of patient care is working with all types of hearing technology from hearing aids to cochlear implants. Outside of the clinic, Anna is an avid bookworm, baker, and retro gamer.

Cherry Henson was born and raised in Manila, Philippines. She graduated from St. Scholastica’s College in Manila with a bachelor’s in entrepreneurship. Before taking this position, Cherry managed a preschool for 15 years until she and her three children migrated to the U.S. in 2019. Cherry is a highly motivated, energetic and will work with a broad range of pediatric and adult patients. In her spare time, she loves to care for her houseplants and family dog, Truffle.

Iris McCollum is a Stockton native who is currently completing her associate degree in business administration and working toward her bachelor’s degree. Her main duties are billing insurance, coordinating hearing aid care, and assisting with walk-in hearing aid patients. Iris enjoys reading and spending time with her family. Her favorite thing to do is try out new cooking recipes and share them for others to enjoy. She looks forward to helping patients from all walks of life.

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.