Brooke Pearce, Au.D., FAAA / Director of Audiology
Dr. Pearce is a graduate of Arizona State University (ASU) and A.T. Still University School of Audiology. She also received specialized training at the Mayo Clinic, Phoenix Children’s Hospital, Barrow Neurological Institute and the Veterans Administration (VA).
Dr. Pearce has been practicing since 2007 in Orange County, California where she was appointed Director of Audiology at Newport-Mesa Audiology Balance & Ear Institute, one of the premier balance institutes in the United States. Specializing in the care of dizzy and imbalanced patients, Dr. Pearce’s interests also include vestibular physiology, vestibular rehabilitative advances, and furthering vestibular procurement. Dr. Pearce is also a clinical preceptor of audiology for numerous distinguished universities throughout the country and is a fellow of the American Academy of Audiology holding board certification. Dr. Pearce plays an active role in patient and physician education.
You can usually find her around Orange County practicing yoga and Pilates, behind a camera lens, and exploring all of the brilliance Southern California has to offer.
Jennifer Grace, Au.D. / Director of Clinical Management and Treatment
Dr. Grace received her Bachelor of Science degree in Speech, Language, and Hearing Sciences from San Diego State University and her Doctoral degree in Audiology at Northwestern University. She joined our Institute initially as a fellow in 2011 and joined our clinical staff after completing her doctoral studies and now manages the Institute’s various clinical treatment programs.
Dr. Grace was drawn to a career in audiology by her drive for scientific knowledge and deep desire to help people. She is a member of the American Academy of Audiology and ASHA and is passionate about implementing cutting edge technology to diagnose, treat and care for patients.
Her personal interests include anything that gets her outside, including camping, hiking, snowboarding and playing beach volleyball. She loves to travel to new destinations, as well as to her favorite standbys – the mountains for snowboarding and the lake to enjoy time with family.
Valerie Guzzo, Au.D. / Director of Pediatrics
Dr. Guzzo received her Doctor of Audiology degree from Northwestern University in 2012. Born and raised in Chicago, she relocated to Newport Beach, California to join the team at Newport-Mesa Audiology Balance & Ear Institute in 2013.
Dr. Guzzo’s audiological interests include treatment of hearing loss, as well as vestibular disorders – with a specialty for the pediatric population, for which she has been appointed Director of Pediatric Audiology at the Institute.
She also enjoys clinical research, and has participated in presenting the Institute’s research at the American Academy of Audiology’s annual conference. Dr. Guzzo is board certified in audiology and is a Fellow of the American Academy of Audiology and the American Speech Language and Hearing Association.
Dr. Guzzo’s personal interests include rooting for Chicago sports teams, playing poker, going to concerts and music festivals, and traveling.
Stacie Pilgrim, Au.D. / Director of Clinical Research
Dr. Pilgrim received her Bachelor of Science and Doctorate of Audiology degrees from Bloomsburg University in Pennsylvania.
A native of New Jersey, Dr. Pilgrim moved to California to complete her doctoral residency in 2008 and has remained an integral part of the team at Newport-Mesa Audiology Balance & Ear Institute ever since. Dr. Pilgrim has served as the Director of Clinical Research for the Institute since 2013.
Dr. Pilgrim holds particular interest in the areas of vestibular diagnostics and rehabilitation of the dizzy patient. She is currently conducting research on vestibular treatment and rehabilitation of those suffering from dizziness, vertigo, imbalance, and migraines.
Dr. Pilgrim also enjoys presenting at annual conferences across the country on topics related to vestibular pathology and treatment. While not focusing on audiology, Dr. Pilgrim loves shopping, cooking, and spending time with her family.
Jennifer Gonzalez, Au.D., Ph.D. / Associate Director of Clinical Research
Dr. Jennifer Gonzalez received her Bachelor of Arts degree in Communicative Disorders from California State University, Long Beach and her Au.D. and Ph.D. degrees from the University of Connecticut. Dr. Gonzalez completed her clinical fellowship at Mayo Clinic in Scottsdale, Arizona.
Originally from Southern California, Dr. Gonzalez returned to the area to join Newport-Mesa Audiology Balance & Ear Institute as Associate Director of Clinical Audiology in 2016. A strong advocate for clinically relevant research, her interests focus on vestibular diagnostics and rehabilitation, central auditory processing, auditory evoked potentials, central auditory plasticity as a result of amplification, and the brain’s involvement in tinnitus.
She is a member of the American Academy of Audiology, the American Auditory Society, the American Balance Society, and the American Speech-Language-Hearing Association, through which she holds her Certificate of Clinical Competence in Audiology (CCC-A). She has also received numerous awards for her research.
Kathleen Jastromb, Au.D. / Associate Director of Vestibular Treatment
Dr. Jastromb received her Bachelor of Science degree in Communication Sciences and Disorders from Ohio University and her Doctorate of Audiology from the Northeast Ohio Audiology Consortium, which confers a collaborative professional doctorate through the Cleveland Clinic Foundation, Kent State University and The University of Akron.
Dr. Jastromb completed her externships at the Cleveland Clinic, as well as the Cleveland Veterans Hospital. She served her final externship at Newport-Mesa Audiology Balance & Ear Institute in 2014 and joined as a member of the clinical audiology staff thereafter. Her professional interests and areas of expertise include Advanced Vestibular Treatment (AVT) and developing clinical protocols for in-clinic sessions, otic capsule dehiscence, otolith dysfunction and rehabilitation as well as audiology research. She put together our clinic-wide research database which allows all audiologists to easily access peer-reviewed vestibular-related research articles quickly to ensure as an Institute, we are always providing evidence-based care and remain up-to-date with any new or developing audiology best practices from around the world.
Dr. Jastromb’s passion for the profession stemmed from her experience with dizziness in high school and it fuels her motivation to help patients become dizzy-free as well. She enjoys going on daily runs, spending time with her Victorian bulldog Bernie and cheering on Cleveland sports teams.
Chelsea Nava, Au.D. / Doctor of Audiology
Dr. Nava received her Bachelor of Science degree in Speech, Language, and Hearing Sciences from San Diego State University and her Doctoral degree in Audiology at Nova Southeastern University. She received additional training at the Veterans Administration (VA) in Miami, Florida. She joined our Institute initially as a fellow in 2013, then joined our clinical staff after completing her doctoral studies.
Today, Dr. Nava’s professional strengths include diagnostic vestibular and balance testing. She also specializes in vestibular rehabilitative treatments. Other interests include amplification advances in hearing aid technology. She is a member of the American Academy of Audiology and the American Speech-Language-Hearing Association, through which she holds her Certificate of Clinical Competence in Audiology (CCC-A).
Her interests include relaxing by the ocean, as well as playing the saxophone. She enjoys staying active, eating healthy (during the week) and spending time with her French bulldog.
Tin Truong, Au.D. / Doctor of Audiology
Dr. Truong received his Bachelor of Arts degree in Hearing and Speech Sciences at University of Maryland and his Doctorate of Audiology from Towson University. He completed his final externship at Newport-Mesa Audiology Balance & Ear Institute, then subsequently joined as a member of the clinical audiology staff. Professionally, he enjoys a wide range of interests including vestibular research, hearing aid technology and auditory processing.
Dr. Truong was first introduced to the field of audiology when he traveled to his native country of Vietnam. While there, he noticed many deaf individuals who could not afford hearing treatment became mute, severely speech impaired, or chronically dizzy without any available treatment. This sparked his passion for audiology, as well as his life goal of expanding the reach of audiology in developing countries.
Dr. Truong enjoys traveling, watching movies and spending time with his rescue dog Maike.
Hannah Williams, Au.D. / Doctor of Audiology
Dr. Williams received her Bachelor of Science degree in Speech-Language Pathology and Audiology in 2012 from Bloomsburg University in Pennsylvania. She continued at Bloomsburg and obtained her clinical Doctorate of Audiology degree in addition to developing a strong interest in diagnostic vestibular assessment and rehabilitation. She is a member of the American Academy of Audiology, ASHA and holds a CCC-A.
Dr. Williams’ passion for hearing and balance grew out of an impressionable childhood experience. A temporary hearing issue proved to her why audiological testing is critical to diagnosis and successful treatment. Later, after watching audiologists diagnose and treat loved ones struggling with imbalance and vertigo, she was hooked.
Her personal interests include traveling, watching basketball and football, as well as shopping.
Kelley Trapp, Au.D. / Doctor of Audiology
Dr. Trapp received her Bachelor of Arts degree in Spanish from Amherst College and her Doctorate of Audiology from the University of Washington. Originally from California, she is happy to be back in her home state and the sunshine.
Dr. Trapp was drawn to audiology because of its blend of science, technology and ability to counsel. She is particularly drawn to the geriatric population and is passionate about improving their quality of life in terms of better communicating and participating fully in daily activities.
Her professional areas of interest include vestibular diagnostics, rehabilitation to improve dizziness and hearing aid fittings. She is a Fellow through AAA (FAAA) and is a member of ASHA (C-AAA).
In her free time, Dr. Trapp enjoys visiting cool new coffee shops, cooking and hiking and is fluent in Spanish.
Amber Kasten, Au.D. / Doctor of Audiology
Dr. Kasten joined the Institute in 2017 after completing her externship at the James Haley VA hospital in Tampa. She received her Bachelor of Arts in Speech-Language-Hearing from the University of Kansas and her Doctorate of Audiology from Northwestern University in Illinois.
Since she suffered from chronic ear infections and subsequent hearing loss as a child, Dr. Kasten had a lot of interaction with audiologists, which inspired her career choice. She began gearing herself towards a medical career in high school.
Dr. Kasten is a Fellow through AAA, board certified in audiology, a certificate holder in audiology precepting, a member of the National Hearing Conservation Association and the American Auditory Society. Her professional strengths include diagnostics and amplification, tinnitus evaluation and treatment, as well as vestibular evaluations, to name a few.
She is active in philanthropy and served as a mentor for Million Women Mentors, working with 5th grade girls interested in STEM careers. In her free time, she enjoys kayaking with her dog, biking with her husband and redecorating her home.
Adam Waters, Au.D. / Doctor of Audiology
Dr. Waters received his Bachelor of Science degree in Commercial Songwriting from Middle Tennessee State University and his Doctorate of Audiology from Louisiana State University. His audiology externship was with the Gulf Coast Veterans Health Care System in Biloxi, Mississippi.
Dr. Waters is a licensed audiologist in California and Louisiana. His research interests include: multisensory integration, vestibular rehabilitation, vestibular contributions to cognition and auditory processing disorders.
Dr. Waters is a native of Louisiana and has been active in community volunteerism, passionate about helping veterans. Recently he volunteered at the Golden Age Games, assisting veterans in the air rifle competition.
When not at work, Dr. Waters enjoys attending music festivals, writing and recording music, traveling and watching college football.
Harlan Carroll / Audiologist
Harlan Carroll has been an audiologist for over 20 years; joining the Institute with a wealth of experience. He graduated with a Bachelor of Science degree from Colorado State University, while receiving a full football scholarship. Carroll achieved his Master of Arts degree from the University of Northern Colorado and has conducted several research studies in the field of audiology.
Carroll enjoys sports, working out, learning to cook, exploring other countries with his favorite travel companion (his wife) and volunteering his time and service to those less fortunate through his church. Most recently, he went to the Democratic Republic of the Congo to assist with a school and counsel abused men and women.
He and his wife are enjoying life with their newborn daughter. If you see him around the Institute, be sure to ask him about his fun socks; each one has its own unique story.
Lydia Riehl, Au.D. / Doctor of Audiology
Dr. Riehl is one of our newest doctors of audiology to join our Institute. She received her Bachelor of Arts degree from Creighton University in Omaha, Nebraska and her Doctor of Audiology degree from The Graduate Center, City University of New York. Her externship was completed at Columbia University Medical Center, where she was extensively involved with many aspects of audiology, treating patients of all ages, from newborn to geriatric.
Dr. Riehl’s areas of professional interest include hearing aid fitting and programming, aural rehabilitation, assistive listening devices, and tinnitus evaluation. She was inspired to become an audiologist after witnessing a close family member struggle with severe hearing loss, and then seeing how treatment of hearing loss and tinnitus changed his life. She is also very interested in cochlear implants and bone-anchored hearing devices, that stem from her externship experience in New York.
She’s been actively involved in community philanthropy raising money for those affected by hearing loss and she also taught English and math to children in Ethiopia during her undergraduate career. In her leisure time, Dr. Riehl enjoys hiking, travelling, trying new restaurants and spending time with her family.
Christopher Garrett, Au.D. / Doctor of Audiology
Dr. Garrett received his Doctorate of Audiology degree from Arizona State University and his Bachelor of Science degree in Communication Sciences and Disorders from Appalachian State University in North Carolina.
Dr. Garrett recently completed his externship at Montefiore Medical Center and the Rose F. Kennedy Children’s Evaluation and Rehabilitation Center in New York City. His experience focused heavily on pediatric and adult diagnostics and the treatment of hearing loss with amplification. He was trained as part of the LEND (Leadership Education in Neurodevelopmental and related Disabilities) program, which gave him insight into the interdisciplinary care of infants, children and adolescents with developmental disabilities. In addition to traditional hearing aids, he has a background in programming and counseling patients with cochlear implants and bone-anchored hearing aids.
Dr. Garrett has extensive volunteer experience with various organizations including the Arizona Special Olympics, Association of Late Deafened Adults and the Student Academy of Audiology. He provided audiological services in Malawi, Africa with Hearing for Humanity and has led multiple aural rehabilitation groups. In his free time, he loves to run, hike, visit farmer’s markets, travel and play recreational kickball and volleyball.