Menlo Park: (650) 854-1980
Los Altos: (650) 941-0664
Menlo Park: (650) 854-1980
Los Altos: (650) 941-0664
Menlo Park: (650) 854-1980
Los Altos: (650) 941-0664
We’re Here When You Need Us
Have a question, concern, or just want to chat about hearing health?
Reach out for a friendly, no‑obligation conversation. Fill out the form or call either of our offices—your best hearing starts with a single message.
We’re Here When You Need Us
Have a question, concern, or just want to chat about hearing health?
Reach out for a friendly, no‑obligation conversation. Fill out the form or call either of our offices—your best hearing starts with a single message.
We’re Here When You Need Us
Have a question, concern, or just want to chat about hearing health?
Reach out for a friendly, no‑obligation conversation. Fill out the form or call either of our offices—your best hearing starts with a single message.
Contact Us
Have a question? We’ll call you!
Simply request a callback through this form, and we’ll call you for a short and friendly no-obligation conversation to answer your questions and offer our expert advice.
Don’t want to wait? Then why not call us at your nearest office.
Menlo Park
3555 Alameda de las Pulgas, Suite 100, Menlo Park, CA 94025
Los Altos
496 First Street, Suite 120, Los Altos, CA 94022
Contact Us
Have a question? We’ll call you!
Simply request a callback through this form, and we’ll call you for a short and friendly no-obligation conversation to answer your questions and offer our expert advice.
Don’t want to wait? Then why not call us at your nearest office.
Menlo Park
3555 Alameda de las Pulgas, Suite 100, Menlo Park, CA 94025
Los Altos
496 First Street, Suite 120, Los Altos, CA 94022
Contact Us
Have a question? We’ll call you!
Simply request a callback through this form, and we’ll call you for a short and friendly no-obligation conversation to answer your questions and offer our expert advice.
Don’t want to wait? Then why not call us at your nearest office.
Menlo Park
3555 Alameda de las Pulgas, Suite 100, Menlo Park, CA 94025
Los Altos
496 First Street, Suite 120, Los Altos, CA 94022
Silicon Valley’s Most Trusted Hearing Care Experts Are Here to Help
Passionate about raising awareness for healthy hearing, we are here to help.
Whether you have a question, a concern, or a challenge, we would be delighted to have the chance to assist and have a no-obligation friendly conversation with you.
Please complete the form on this page, or call one of our offices.
Meet Your Hearing Experts
Ariel Fruendt
Au.D.
Co-Owner and Clinical Audiologist
Menlo Park
Rachel Appleton
Au.D.
Co-Owner and Clinical Audiologist
Menlo Park
Brook Raguskus
Au.D.
Clinical Audiologist
Los Altos
Ashley Chwastyk
Au.D.
Clinical Audiologist
Los Altos
Ling Zhong
Au.D.
Clinical Audiologist
Menlo Park
Amanda Duren
Au.D.
Clinical Audiologist
Menlo Park
Brianne Mangold
Au.D.
Clinical Audiologist
Menlo Park
Ethan Chen, B.A.
B.A.
Audiology Doctoral Student
Los Altos
Rachel Gringorten
Doctoral Audiology Student
Jane H. Baxter
Au.D.
Owner Emeritus and Clinical Audiologist
Deborah Clark
Au.D.
Owner Emeritus and Clinical Audiologist
Ann Mau
Patient Care Coordinator
Menlo Park
Jasmine May
Patient Care Coordinator
Menlo Park
Jana Jacobs
Office Manager
Los Altos
Akaash Nayak
Patient Care Coordinator
Menlo Park
Brian Kajita
Audiology Assistant
Menlo Park
Kirstin Chang
Audiology Assistant
Los Altos
Janna Dumlao
Audiology Assistant
Menlo Park
Diana Gutierrez
Audiology Assistant
Los Altos
Kassie Walder
Patient Care Coordinator
Los Altos
Jessie Johnson
Director of Outreach and Special Projects
Heather Chapman
Administrative Assistant
Steve Beck
Operations Manager
Garrett Canavero
Operations Assistant & IT Support
Meet Your Hearing Experts
Ariel Fruendt
Au.D.
Co-Owner and Clinical Audiologist
Menlo Park
Rachel Appleton
Au.D.
Co-Owner and Clinical Audiologist
Menlo Park
Brook Raguskus
Au.D.
Clinical Audiologist
Los Altos
Ashley Chwastyk
Au.D.
Clinical Audiologist
Los Altos
Ling Zhong
Au.D.
Clinical Audiologist
Menlo Park
Amanda Duren
Au.D.
Clinical Audiologist
Menlo Park
Brianne Mangold
Au.D.
Clinical Audiologist
Menlo Park
Ethan Chen, B.A.
B.A.
Audiology Doctoral Student
Los Altos
Rachel Gringorten
Doctoral Audiology Student
Jane H. Baxter
Au.D.
Owner Emeritus and Clinical Audiologist
Deborah Clark
Au.D.
Owner Emeritus and Clinical Audiologist
Ann Mau
Patient Care Coordinator
Menlo Park
Jasmine May
Patient Care Coordinator
Menlo Park
Jana Jacobs
Office Manager
Los Altos
Akaash Nayak
Patient Care Coordinator
Menlo Park
Brian Kajita
Audiology Assistant
Menlo Park
Kirstin Chang
Audiology Assistant
Los Altos
Janna Dumlao
Audiology Assistant
Menlo Park
Diana Gutierrez
Audiology Assistant
Los Altos
Kassie Walder
Patient Care Coordinator
Los Altos
Jessie Johnson
Director of Outreach and Special Projects
Heather Chapman
Administrative Assistant
Steve Beck
Operations Manager
Garrett Canavero
Operations Assistant & IT Support
Meet Your Hearing Experts
Ariel Fruendt
Au.D.
Co-Owner and Clinical Audiologist
Menlo Park
Rachel Appleton
Au.D.
Co-Owner and Clinical Audiologist
Menlo Park
Brook Raguskus
Au.D.
Clinical Audiologist
Los Altos
Ashley Chwastyk
Au.D.
Clinical Audiologist
Los Altos
Ling Zhong
Au.D.
Clinical Audiologist
Menlo Park
Amanda Duren
Au.D.
Clinical Audiologist
Menlo Park
Brianne Mangold
Au.D.
Clinical Audiologist
Menlo Park
Ethan Chen, B.A.
B.A.
Audiology Doctoral Student
Los Altos
Rachel Gringorten
Doctoral Audiology Student
Jane H. Baxter
Au.D.
Owner Emeritus and Clinical Audiologist
Deborah Clark
Au.D.
Owner Emeritus and Clinical Audiologist
Ann Mau
Patient Care Coordinator
Menlo Park
Jasmine May
Patient Care Coordinator
Menlo Park
Jana Jacobs
Office Manager
Los Altos
Akaash Nayak
Patient Care Coordinator
Menlo Park
Brian Kajita
Audiology Assistant
Menlo Park
Kirstin Chang
Audiology Assistant
Los Altos
Janna Dumlao
Audiology Assistant
Menlo Park
Diana Gutierrez
Audiology Assistant
Los Altos
Kassie Walder
Patient Care Coordinator
Los Altos
Jessie Johnson
Director of Outreach and Special Projects
Heather Chapman
Administrative Assistant
Steve Beck
Operations Manager
Garrett Canavero
Operations Assistant & IT Support
Opening Times
Monday: 9:00am – 7:00pm
Tuesday: 9:00am – 7:00pm
Wednesday: 8:30am – 5:45pm
Thursday: 8:30am – 5:45pm
Friday: 9:00am – 4:45pm
Saturday: Closed
Opening Times
Monday: 8:30am – 5:15pm
Tuesday: 8:30am – 5:15pm
Wednesday: 8:30am – 5:15pm
Thursday: 8:30am – 5:15pm
Friday: 8:00am – 4:00pm
Saturday: Closed
Opening Times
Monday: 9:00am – 7:00pm
Tuesday: 9:00am – 7:00pm
Wednesday: 8:30am – 5:45pm
Thursday: 8:30am – 5:45pm
Friday: 9:00am – 4:45pm
Saturday: Closed
Opening Times
Monday: 8:30am – 5:15pm
Tuesday: 8:30am – 5:15pm
Wednesday: 8:30am – 5:15pm
Thursday: 8:30am – 5:15pm
Friday: 8:00am – 4:00pm
Saturday: Closed
Opening Times
Monday: 9:00am – 7:00pm
Tuesday: 9:00am – 7:00pm
Wednesday: 8:30am – 5:45pm
Thursday: 8:30am – 5:45pm
Friday: 9:00am – 4:45pm
Saturday: Closed
Opening Times
Monday: 8:30am – 5:15pm
Tuesday: 8:30am – 5:15pm
Wednesday: 8:30am – 5:15pm
Thursday: 8:30am – 5:15pm
Friday: 8:00am – 4:00pm
Saturday: Closed
©2025 Pacific Hearing Service. All Rights Reserved.
©2025 Pacific Hearing Service. All Rights Reserved.
©2025 Pacific Hearing Service. All Rights Reserved.