Dizziness & Balance Testing in Southern & Central California

Feeling dizzy, unsteady, or like the room is spinning? Comprehensive vestibular testing with Dr. Mendoza's team identifies what's causing it. Four California locations.

Four Locations Serving Southern and Central California

Apple Valley, CA

17768 Wika Rd #200
Apple Valley, CA 92307
(760) 503-1700

Visalia, CA

4004 S Demaree St Ste B
Visalia, CA 93277
(760) 503-1700

La Verne, CA

2125 Wright Ave # C8
La Verne, CA 91750
(760) 503-1700

Jess Ranch, CA

19015 Town Center Dr #104
Apple Valley, CA 92308
(760) 503-1700

Why Dizziness Deserves a Real Answer

Dizziness is one of the most common reasons adults visit a doctor, and one of the most frequently dismissed. Patients are often told it’s a normal part of getting older, or handed a prescription without anyone identifying what’s actually going wrong. Meanwhile the symptoms continue — the spinning when you roll over in bed, the unsteadiness on stairs, the fear of a fall that keeps you home.

Your balance depends on three systems working together: your inner ear, your vision, and the sensory nerves in your joints and muscles. When the inner ear portion — the vestibular system — isn’t sending accurate signals, your brain receives conflicting information about where your body is in space. The result is dizziness, vertigo, or a persistent sense that something is off.

Vestibular testing measures how well that system is working. It’s the difference between guessing at a cause and knowing one.

Symptoms Worth Testing

Schedule an evaluation if you regularly experience:

  • A spinning sensation, especially when changing head position or rolling over in bed
  • Unsteadiness or a feeling of being pulled to one side
  • Lightheadedness when standing
  • Blurred vision or difficulty focusing when moving your head
  • A fall, or a near-fall you can’t fully explain
  • Dizziness accompanied by hearing loss, ear fullness, or tinnitus

That last combination matters. When dizziness appears alongside hearing changes, the inner ear is very often involved — which is exactly where an audiologist’s expertise applies.

Vestibular Testing at Optimum Audiology

Dr. Kristi Mendoza and our team provide comprehensive balance and vestibular assessments at all our locations. With over 30 years of experience serving seniors and Veterans across Southern and Central California, we understand how much a balance problem can narrow a life — and how much confidence returns once you have answers.

Testing is non-invasive and performed in-office. Your evaluation may include VNG, vHIT, or VEMP, along with a hearing evaluation, since the inner ear governs both. Plan on approximately 1-hour for your appointment.

We’ll review your results with you the same day, explain what they mean in plain language, and coordinate directly with your physician, ENT, or neurologist when further care is needed.

Schedule an appointment today

Take the first step toward better hearing with a personalized consultation - our expert team is ready to help you reconnect with the sounds that matter most.

Your Questions Answered

Frequently asked questions

With over 30 years of experience, we understand you may have questions about hearing health, treatment options, and what to expect from your visit. Dr. Mendoza and our team have compiled answers to the most frequently asked questions to help you feel informed and confident about your care.

Vestibular testing is a series of non-invasive assessments that measure how well your inner ear balance system is working. Your inner ear contains structures that detect head movement and position, then send that information to your brain. When those signals are inaccurate or inconsistent, the result is dizziness, vertigo, or unsteadiness. Testing identifies whether the problem originates in the inner ear and, when it does, which ear and which structures are involved.

The inner ear governs both hearing and balance, so the two systems share the same anatomy and often the same problems. Audiologists are trained specifically in inner ear function, which makes them well suited to identify vestibular causes of dizziness. When your symptoms include hearing changes, ear fullness, or ringing alongside the dizziness, an inner ear cause becomes considerably more likely.

Plan on approximately [DURATION] for your appointment. This allows time for a discussion of your symptoms and medical history, the testing itself, and a review of your results before you leave.

The testing is non-invasive and does not involve needles or injections. Some portions may briefly provoke the dizziness you've been experiencing — that's intentional, since we need to observe how your system responds. Any dizziness typically settles within a few minutes. Our team will explain each step before it begins and stays with you throughout.

[PREP INSTRUCTIONS — medications to hold and for how long, food/caffeine/alcohol restrictions, no eye makeup, whether to arrange a driver.] If you're unsure about any of your medications, call us at 760-503-1700 before your appointment rather than stopping anything on your own.

Many patients find it helpful to bring a family member regardless, both for the drive home and to help remember the details of the results discussion.

If you've already seen a physician, ENT, or neurologist about your dizziness, bring any records or imaging results with you. We coordinate directly with your other providers so everyone is working from the same information.

Many insurance plans cover diagnostic vestibular testing when it's medically indicated. Coverage varies by plan, and some require a physician referral for the testing to be covered. Our team can verify your benefits before your appointment and explain any out-of-pocket costs in advance. We accept most major insurance plans and work with Veterans benefits and Workers' Compensation.

We review your results with you the same day and explain what they mean in plain language. If the cause is one we can address, we'll discuss your options. If your results point toward something outside our scope — a neurological cause, a cardiovascular cause, or a condition requiring an ENT — we'll tell you directly and coordinate a referral to the right specialist. An accurate diagnosis is the goal, whether or not the treatment happens here.

Request a Callback

Request a callback to discover how our five-star service and 30 years of experience can help you reconnect with the sounds that matter most.

Hearing Care by Optimum Audiology

Comprehensive Hearing Services

Our four California locations offer comprehensive hearing evaluations and custom fittings with compassionate care and five-star service. With Dr. Mendoza’s 30+ years of expertise, we provide personalized solutions from all top manufacturers. Flexible service options, including remote programming and concierge visits, ensure ongoing support throughout your hearing health journey.

Hear From Our Customers

What Our Customers Say

Our patients’ experiences speak to our dedication to compassionate care and five-star service. Families across Southern and Central California report clearer conversations, renewed confidence, and transformative improvements in their daily lives through Dr. Mendoza’s expert care and personalized hearing solutions.

Excellent
Optimum Audiology4.9
Based on 439 reviews
Tim Strathmann
19 hours ago
Great professional caring service. The staff working at this office are great, helpful, and very knowledgeable. I would recommend Optimum Audiology to anyone needing hearing evaluation or services.
Barbara Bonner
20 hours ago
Great service, spent quality time with me making sure I understood everything
sun chanthalangsy
23 hours ago
Lovely staff and very helpful
Kathy Kidd
2 days ago
Thank you so much for the exceptional care each person in your office gave to us on our visit to Optimum Audiology today! My dear friend who I care for, felt at complete ease in your office. We look forward to finishing her care at our next appointment!
Staff was, as always, kind, professional and efficient. They were gracious and a pleasure to work with.
Ronnett Holden
2 days ago
They was kind and they explained everything to me.
carol wahl
5 days ago
William Sena
7 days ago
Very knowledgeable on the science of audiology
Robert Ferrato
1 week ago
Very friendly and helpful people. Enjoyed the visit.
Susan Curwen
1 week ago
I appreciated the great service, care of my hearing aids & I learned new information regarding use of my hearing aid app. Thank you!
John Leve
1 week ago
Outstanding customer support!!
Bill Clark
1 week ago
Everything went perfect again.
Maria rosales
1 week ago
Realy nice personal doctors
This review is for Kristi Mendoza. In Apple Valley, California. License: AU 1439 I want to personally thank you for helping my 96 yr old dad. My brother and I and even my children have bought my dad so many hearing aids. And they failed. When my brother told me my dad had an appointment with the VA because of you I knew I had to thank you. Thank you so much for your kindness, for your patience and for your compassion and concern. We appreciate it so much. Now me and my kids can call my dad and talk to him on the phone. My brother said my dad smiled all the way home from the VA. That means more to us than anything. We want our dad to live a comfortable and happy life. He has done so much for this country where he can’t even hear. He truly deserves the best. Thank you so so much. Peace and blessings to you always. Your kindness will always keep you blessed.💕
I really was comforted by the way the clinician thoroughly explained, while instructing. E through the examen. Also they allowed me to eat up lots of Halloween candy
Anna Salazar
1 week ago
Panda Bear
1 week ago
Everyone was really nice and caring they did a good job with my 12 year old son
Very professional staff. Very knowledgeable about their products that are being offered. Wish I would've known about them 3 years ago. Great experience. Highly recommend
Brian Pellicci
2 weeks ago
Jasmine was very insightful and professional
Sandra Connell
2 weeks ago
I had an excellent experience at Optimum Audiology. Everyone was very helpful and kind. Service was excellent as well and I received my new hearing aids quickly and given the proper education on how to get the most out of them. Overall, Optimum Audiology is fantastic for all your hearing needs.
Philip Soto
2 weeks ago
Staff is always friendly and very knowledgeable and courteous
Tim Strathmann
19 hours ago
Great professional caring service. The staff working at this office are great, helpful, and very knowledgeable. I would recommend Optimum Audiology to anyone needing hearing evaluation or services.
Response from the owner:Thank you for your thoughtful 5-star review! We are delighted to hear that you enjoyed your visit and appreciated our new location. Creating a welcoming environment where every person feels valued is important to our entire team. Thank you for your recommendation and for taking the time to share your kind words, they truly mean a great deal to us.
Barbara Bonner
20 hours ago
Great service, spent quality time with me making sure I understood everything
Response from the owner:We appreciate your positive feedback. Ensuring customer understanding is a priority for us!
sun chanthalangsy
23 hours ago
Lovely staff and very helpful
Han-Su Kim
1 day ago
Fantastic place with incredibly kind people. 100% recommend
Kathy Kidd
2 days ago
Thank you so much for the exceptional care each person in your office gave to us on our visit to Optimum Audiology today! My dear friend who I care for, felt at complete ease in your office. We look forward to finishing her care at our next appointment!
Staff was, as always, kind, professional and efficient. They were gracious and a pleasure to work with.
Ronnett Holden
2 days ago
They was kind and they explained everything to me.
carol wahl
5 days ago
Response from the owner:Thank you so much for the five-star review! We truly appreciate your kind support.
Response from the owner:Thank you for the five stars! Our team is grateful for your thoughtful feedback.
William Sena
7 days ago
Very knowledgeable on the science of audiology
Response from the owner:Thank you for the wonderful review! We’re proud to have a team that is passionate about audiology and committed to continually expanding their knowledge. We truly appreciate you recognizing that dedication and taking the time to share your kind words!
Robert Ferrato
1 week ago
Very friendly and helpful people. Enjoyed the visit.
Response from the owner:We appreciate your kind words. Glad you enjoyed your visit!
Susan Curwen
1 week ago
I appreciated the great service, care of my hearing aids & I learned new information regarding use of my hearing aid app. Thank you!
Response from the owner:We’re so grateful you took the time to share your kind words. Thank you!
John Leve
1 week ago
Outstanding customer support!!
Response from the owner:Your kind words truly brightened our day. Thank you for recognizing Donna and our team. We are grateful you took the time to leave a review and appreciate your encouragement.
Bill Clark
1 week ago
Everything went perfect again.
Response from the owner:Your support is greatly appreciated by everyone on our team. Thank you for the five stars!
Maria rosales
1 week ago
Realy nice personal doctors
Response from the owner:Thank you for the wonderful feedback! It means a lot to our Optimum Audiology team.
This review is for Kristi Mendoza. In Apple Valley, California. License: AU 1439 I want to personally thank you for helping my 96 yr old dad. My brother and I and even my children have bought my dad so many hearing aids. And they failed. When my brother told me my dad had an appointment with the VA because of you I knew I had to thank you. Thank you so much for your kindness, for your patience and for your compassion and concern. We appreciate it so much. Now me and my kids can call my dad and talk to him on the phone. My brother said my dad smiled all the way home from the VA. That means more to us than anything. We want our dad to live a comfortable and happy life. He has done so much for this country where he can’t even hear. He truly deserves the best. Thank you so so much. Peace and blessings to you always. Your kindness will always keep you blessed.💕
I really was comforted by the way the clinician thoroughly explained, while instructing. E through the examen. Also they allowed me to eat up lots of Halloween candy
Response from the owner:Thank you so much! We’re grateful for the five stars and truly appreciate your feedback.
Anna Salazar
1 week ago
Response from the owner:Thank you for taking the time to leave us five stars. Your feedback means so much to our team!
Panda Bear
1 week ago
Everyone was really nice and caring they did a good job with my 12 year old son
Response from the owner:Thank you for your thoughtful feedback! Our team is committed to providing compassionate care and five-star service.
Response from the owner:Five stars means a lot to our team! Thank you for your generous review and support.
Very professional staff. Very knowledgeable about their products that are being offered. Wish I would've known about them 3 years ago. Great experience. Highly recommend
Response from the owner:This is the kind of feedback that encourages our team to keep striving for excellence. Thank you!
Brian Pellicci
2 weeks ago
Jasmine was very insightful and professional
Response from the owner:What a wonderful review to receive! Thank you for your kind words and five stars.
Sandra Connell
2 weeks ago
I had an excellent experience at Optimum Audiology. Everyone was very helpful and kind. Service was excellent as well and I received my new hearing aids quickly and given the proper education on how to get the most out of them. Overall, Optimum Audiology is fantastic for all your hearing needs.
Response from the owner:We’re passionate about making every interaction welcoming and caring. Thank you for recognizing our team with five stars!
Philip Soto
2 weeks ago
Staff is always friendly and very knowledgeable and courteous
Response from the owner:We appreciate your kind words about our team. Thank you!

Request aCallback

Have questions about your hearing? Our team will help you get answers and schedule your evaluation with Dr. Mendoza.

Don't Miss the Sounds That Matter Most

Schedule your hearing evaluation today and take the first step toward better hearing and living.