Serving Los Altos and Menlo Park for 40 years

with customized, personalized, and intentional hearing care.

Meet Our Doctors

Our Mission

At Pacific Hearing Service, we strive to improve the lives of our patients.  Our mission is to provide thoughtful, comprehensive, personal care to ensure that everyone we touch experiences a greater quality of life.  We do this by embracing state of the art technology and focusing on continuous learning. This ensures that our patients receive the best care and can make informed choices that will improve their lives.  We are committed to expanding the world of our patients by enhancing their connections with their friends, colleagues, and loved ones.


We can understand your hearing loss better than anyone, and we want to care for you every step of the way.

Welcoming Environment

Your hearing matters to us, and we promise to go above and beyond what it takes to give you the care you deserve.

Making a Difference

Treating your hearing loss will bring a sense of wholeness, changing your life and reinvigorating your purpose.

Best Practices

We use the best technology to achieve accurate results every time.

Our Core Values

Your care is of utmost importance. We provide the best technology and care available to give you an experience that goes above and beyond what you expect of an audiology practice. We are more than great hearing. We are giving you an opportunity to take control of your life again.

  • Honor the importance of everyone
  • Communicate effectively
  • Make a difference
  • Learn through curiosity
  • Thrive creatively
  • Create a welcoming environment
  • Be genuine
  • Choose compassion
  • Be respectful
  • Do it right
Schedule AppointmentSee Our Services

Our Doctors of Audiology

Dr. Jane H. Baxter, Au.D.

Co-owner and Clinical Audiologist
Menlo Park Office

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Dr. Baxter became a partner at Pacific Hearing Service in 1986 and both manages and provides audiology services at the Menlo Park office. She completed her clinical doctorate in Audiology (Au.D.) at Salus University, received her graduate training at San Francisco State and UC Berkeley, and is a Fellow of the American Academy of Audiology and certified by the American Board of Audiology. After working as a teacher of hearing impaired children, she changed her focus to audiology services and worked as a research audiologist at the VA Medical Center in Martinez, CA. Prior to joining Pacific Hearing Service Dr. Baxter worked at Stanford Medical Center performing clinical audiology and research.

She has made important contributions to the field of audiology through publications and presentations at professional meetings including authoring a chapter for a textbook about establishing a private audiology practice. She was one of the founders of the California Academy of Audiology and served as its treasurer. Dr. Baxter has also been a consultant for multiple startups and major hearing aid manufacturers including Widex, Starkey, ReSound, Phonak, Oticon, Sonic Innovations, Sound ID and EarLens.

Dr. Baxter is part of a long line of professionals dedicated to the needs of those with hearing impairment. Her grandfather, Frank Baxter, M.D., was the first Eye, Ear, Nose and Throat physician in the East Bay. Many people in the community remember her father, William Baxter, M.D., who retired from his Ear, Nose and Throat practice in Los Altos in 1998. Her daughter, Dr. Ariel Baxterbeck, joined the audiology profession in 2013.

In her hours away from the office, she enjoys hiking, reading, and going to the theatre.

Dr. Margaret (Peg) Lisi, Au.D.

Clinical Audiologist
Menlo Park office

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Dr. Lisi joined Pacific Hearing Service in January 2007. She obtained her Master’s degree from San Francisco State University where she was the recipient of the Distinguished Achievement Award for Academic Excellence. She earned her clinical doctorate degree in audiology from the University of Florida in 2008.  She is certified by the American Board of Audiology, is a Fellow of the American Academy of Audiology, and has researched music-related hearing loss and its secondary effects.

Dr. Lisi is passionate about the counseling aspect of working with her clients. She leads the amplification workshops in the Menlo Park office where she says she learns almost as much from her patients as they do from her.

In addition to being an audiologist, Dr Lisi is a trained musician and singer. She has sung with regional opera houses and orchestras throughout the Unites States and is currently a professional member of the San Francisco Symphony Chorus. Because of her musical background, she brings to her practice a unique perspective on fitting hearing aids on musicians and music lovers alike. When not providing audiology services or singing, you’ll find Dr. Lisi either in the yoga studio, hiking or biking, attending a play, or simply enjoying the culinary wonders of the Bay Area.

Dr. Brook Raguskus, Au.D.

Clinical Audiologist
Los Altos office

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Dr. Brook Raguskus has been with Pacific Hearing Service since 1997.  She graduated from the University of Washington with a Master’s degree in Audiology and completed her clinical doctorate degree (Au.D.) in Audiology at Salus University. She is a Fellow of the American Academy of Audiology and is certified by the American Board of Audiology.

Dr. Raguskus is focused on helping people find the most effective and customized solution to their hearing concerns and was inspired to enter the field after learning about revolutionary hearing device technology. While at Pacific Hearing Service she has participated in beta testing of hearing instruments, signal processing strategies, and listening enhancement exercises with innovators in the field of audiology.

Dr. Raguskus has a particular interest in the area of tinnitus management. She recognizes the significant impact that tinnitus can have in people’s lives and is excited about the technology and strategies available to help people manage their tinnitus.

She loves teaching and is passionate about increasing public awareness of hearing health care. She has trained school nurses in hearing screening techniques, been a guest lecturer in a physics of sound class for teachers, and hosted field trips for high school students. She is proud to have received a Bay Area Schools for Excellence in Education Community Partners Award from Hewlett-Packard, Palo Alto.

When she is not providing audiology services, she loves playing volleyball, hiking, hosting game nights, and spending time with family and friends.

Dr. Deborah Clark, Au.D.

Co-Owner and Clinical Audiologist
Los Altos office

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Dr. Deborah Clark has been with Pacific Hearing Service since 1998. In January, 2008 she became co-owner working first in the Menlo Park office and now managing the Los Altos office. She is a Fellow of the American Academy of Audiology and is certified by the American Board of Audiology.  She was on the board of the Hearing Loss Association of America, California State Association from 2010 – 2013 and service as Vice President.

Dr. Clark graduated from the University of Tennessee, Knoxville with a Master’s degree in Audiology and completed her clinical doctorate degree (Au.D.) in Audiology at Salus University

Prior to joining Pacific Hearing Service, Dr. Clark worked at the renowned Bill Wilkerson Hearing and Speech Center in Nashville, Tennessee and the Vanderbilt University Otolaryngology Department. In addition to her clinical responsibilities in Nashville, she was involved with hearing related research and the training of audiology students, medical students and otolaryngology residents.

When she left Nashville, Dr. Clark worked at the Virginia Mason Medical Center Otolaryngology Department and the University of Washington Speech and Hearing Clinic in Seattle, Washington. There, she divided her time between clinical audiology and teaching and supervising audiology graduate students. It was in those settings that she developed an interest in a more global approach to hearing rehabilitation including speech reading, teaching and counseling.

In addition to over 30 years of experience in hearing aid technology and diagnostic evaluation, Dr. Clark is particularly interested in answering the question “Why do some people purchase hearing aids but don’t wear them?” This has led her to make the identification of adaptive and communication strategies a primary goal for her in the fitting process. To further those goals, she began our “What to Expect from Amplification” classes and co-wrote a textbook chapter with Jane Baxter on establishing a private audiology practice.

Away from the office, she enjoys yoga and ballroom dancing.

Dr. Rachel Otto, Au.D.

Clinical Audiologist
Los Altos office

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Originally from Michigan, Dr. Otto joined our team after completing her clinical externship year at the University of Chicago Hospital as the final year of her Doctor of Audiology program at Northwestern University. Rachel earned her Bachelor of Science degree at DePaul University in Chicago.

Between her undergraduate and doctoral studies, Rachel spent six years working in the field of finance. She decided to transition from business to audiology after several meaningful volunteer experiences during which she felt drawn toward a career path working directly with people. Her doctoral research project focused on maximizing the perception and enjoyment of music for hearing aid users.

She was awarded the grand prize in the Academy of Doctors of Audiology Student Business Plan Competition in November, 2014. Before even joining PHS, Dr. Otto participated in the hearing mission trip throughout the country of Jordan in September, 2015. She has since participated in two hearing mission trips in Guatemala. Dr. Otto’s primary goal is to address the communication needs specific to each patient. She enjoys collaborating with patients to utilize available resources and technology to allow them to fully connect with other individuals. She is also passionate about hearing conservation education as well as interacting with members of the community.

Dr. Rachel Appleton, Au.D.

Clinical Audiologist
Los Altos office

Our History


Pacific Hearing Service was founded in 1977 by an audiologist who moved east shortly after opening the office. He sold the practice to Jennifer Fargo Lathrop, an audiologist who had big ideas for providing audiology services to the hearing impaired people in our community.


Pacific Hearing Service opens its doors with Jennifer as the new owner and at the forefront of innovation as one of the first private audiology practices in the country. In those days, the business was in a small office on San Antonio Road, near El Camino Real, with no running water! (No, she didn’t have to walk barefooted in the snow 10 miles to get to work. But the lack of running water was a real challenge!) That building has been torn down and replaced with upscale condominiums. We still have patients today who remember seeing Jennifer in that old office.

Things were simpler then. Hearing aids were adjusted with a small screwdriver and appointments were 15 minutes.


Jane H. Baxter partners with Jennifer as co-owner of Pacific Hearing Service. Jane (who had been working at Stanford University) and Jennifer had known and respected each other professionally for years. They were both starting families and shared the workload of operating the growing business. Coincidentally, they both ended up having two daughters over the next few years. They job-shared and Pacific Hearing Service continued to grow. The dedication they showed to their patients earned them a reputation for excellence and referrals came from establishments such as Palo Alto Medical Foundation, Kaiser Permanente, Menlo Medical Clinic, Stanford Hospital and many private physician practices in the area.

Over the next few years, they expanded hiring a third audiologist.


PHS is one of the first clinics in the country to fit digitally programmable hearing aid technology by 3M. It was so cumbersome we needed 3 hours for a hearing aid fitting!


Pacific Hearing Service opens a second office offering audiology services on El Camino Real in Atherton. The practice eventually became so busy that there were now six audiologists in the two offices. The spirit of innovation continues as the practice begins to coordinate with hearing aid manufacturers to beta test new products.


The Los Altos office gets a much-needed upgrade with a move to a more modern and convenient facility at our current location at the corner of First St. and San Antonio Rd. in downtown Los Altos. Each room in this office has running water! Both offices continue to grow and participate in hearing aid research and beta testing.


Deborah Clark moves to the Bay Area from Seattle and is offered a position as clinical audiologist at Pacific Hearing Service. Little did we know she would eventually become a co-owner. Her experience working in major medical centers and universities brought a new dimension to the practice.


Pacific Hearing Service begins to offer Hearing Loss Management classes expanding on the commitment to meet the needs of those who have hearing deficits.


Having continually stayed abreast of the latest in hearing science and technology, PHS audiologists go back to school to earn doctorate degrees in audiology (Au.D.). The doctorate degree became the entry level for the industry in 2007.


The former Atherton office relocates to our current location on Alameda de las Pulgas in Menlo Park. The new office is bigger allowing us to offer more comfortable space for our rehabilitation classes and to display assistive hearing technology such as the CTAP phone demonstration area.


Jennifer Lathrop retires from audiology to do hospice work and Deborah Clark becomes a co-owner. Dr. Clark now manages the Los Altos office while Dr. Baxter manages the Menlo Park office.


After nearly 40 years of providing audiology services to the Bay Area, we have a well-earned reputation for treating our patients with the utmost skill, understanding and integrity. Our two offices and six audiologists allow us to be big enough to serve you and small enough to care about you.