Today Thursday: 9:00 AM – 12:00 PM, 1:00 – 5:00 PM
23822 Valencia Blvd., Ste. 103, Valencia, CA 91355

Our Staff

Strawberry Kolt, HIS

Strawberry Kolt, HIS

Hearing Instrument Specialist

I have spent the last 20 years of my career helping people improve their lives. I began working at Advanced Audiology in 2011 in the billing department. Watching so many of our patients have the enjoyment of hearing again drew me to start studying hearing and hearing loss. At that point I began to take many courses and tests to get my hearing aid dispensing license. Choosing this profession has given me great joy. Knowing that I am helping to improve my patients lives through better hearing and communication with their families is very fulfilling.

John Shim, Au.D.

John Shim, Au.D.

Audiologist

I earned a bachelor’s degree in music technology/Audio Engineering at University of California, San Diego (UCSD) then went to Arizona State University (ASU) for a Doctorate in Audiology. During my study, I participated in many research projects as I was eager to know newer ways to enhance hearing. I love that our field incorporates technology with healthcare, and I feel privileged to use my expertise to positively impact others with better hearing.

Karen Castro, HIS

Karen Castro, HIS

Hearing Instrument Specialist

Proudly serving patients at Advanced Audiology since 2019, ensuring everyone has an opportunity to hear and connect with their loved ones and community. I discovered my passion for helping others while studying Communication Disorders at Cal State LA. My favorite part of what I do is seeing patients’ and their families’ lives change for the better in an instant. In 2011 received Bachelor’s degree from Mills College in Political, Legal and Economic Analysis and in 2019 a Postbaccalaureate in Communication Disorders from California State University Los Angeles. I cherish leisure time spent with my faithful companion, Bells or you can find me volunteering at the local zoo’s research department.

Erica Leal, PSC

Erica Leal, PSC

Patient Services Coordinator

I enjoy being a part of a company that changes people’s lives in the best way. Seeing people smile and walk away happy lets me know we are making a difference. Working in customer service all my life has made me appreciate people more and treat them like family. The success in my career is being able to solve our customers problems and giving them something better to look forward to.

Jenna Dempsey, PSC

Jenna Dempsey, PSC

Patient Services Coordinator

I am very grateful to be a part of a company that cares for their clients. I enjoy helping others and taking care of people. I love being a part of this company because it allows us to help people feel like they can get their life back and be a part of a community again.

Tatania Ganshirt, PSC

Tatania Ganshirt, PSC

Patient Services Coordinator

I enjoy working with a company that provides a great service to our community. I have many years of customer service experience and I look forward to the connections we create.

Maria Garcia

Maria Garcia

Audio Tech

Bio coming soon.

woman with ipad background

Customer Reviews

Had a wonderful recent experience at Advanced Audiology (AA). Called to make an appointment per a referral from my ENT Dr. They had an appointment opening 2 days later. They sent me their New Patient paperwork which I filled out and returned via email. When I arrived for my 9am...

Jeff Prata, on Google

What a wonderful experience! Everyone advanced audiology was very professional and helpful. All of my questions and concerns were answered and my hearing aids were adjusted ,cleaned and serviced. I highly recommend them. Thank you!

Kathleen Kenneally, on Google

I can’t say enough good things about this place. From the ease of making the appointment to the care and attention I received once in the office. I needed hearing aides because I suddenly lost hearing in one ear. I called the office ahead of time to let them know...

Margie Reid, on Google

If you live in the SantaClarita area and have hearing issues and are looking for the best Audiologist in Southern California visit Advanced Audiology in Valencia. They are the go to place to receive great care. They are in my experience the best at what they do and that is...

Jim Diani, on Google

Good service. Karen Castro is really good at her job.

Paul O, on Google

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