San Marcos
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(737) 221-8212
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1340 Wonder World Drive
San Marcos, TX 78666 -
M-Th: 8am to 5pm
F: 8am to 2pm



Our Patients Love Us
These folks are the BEST! They’re always so friendly, helpful, and professional. Several times I’ve been in a time crunch and they have gone above and beyond to get my hearing aids in order. Thank you all!!
-Cindy M.
Waterloo Audiology of San Marcos gave me a level of service I had not experienced in a while. Unlike some of the corporate pushers in practice, they give you personal care and service. Brianne's smiling face and Dr. Keup's professional service are top notch.
-Bob W.
Jake Keup has provided excellent service. I am quite happy with my new hearing aids
-Ray F.
Thanks to Alexus and the staff at Waterloo...they tested me and gave me options for hearing aids and also referred me to Boerne Tinnitus for my nagging tinnitus issues, no sales pitch no pressure just honest results with a way forward...thanks Waterloo, service is really priceless!
-Bruce C.
What We Offer at San Marcos:
- Comprehensive & holistic care – Unlike other clinics that are limited to offering hearing aids from one brand, we offer solutions and technology from a wide range of top-tier brands, enabling our providers to find the perfect device and fit for each patient.
- Hearing aids & treatment – Our clinicians are extremely knowledgeable on the latest technology and will work with you to find the best solution to fit your lifestyle. We offer a wide range of hearing aid brands, with styles, and technology to fit your needs and budget.
- Tinnitus testing & treatment – While there is no cure for tinnitus, it can improve greatly with treatment. A full examination including diagnostic testing often pinpoints the underlying cause of the tinnitus, and various treatments are available to help with the symptoms.
- Hearing protection – We specialize in hearing protection for recreation and high-noise jobs, with different levels of attenuation and protection available. From custom in-ear monitors to filtered ear plugs, we have multiple options for protection.
- Insurance counseling – Navigating your insurance benefits is no easy task. That’s why we have insurance specialists on-staff who are happy to verify your benefits and take the time to explain them. Relax in the knowledge that we work with most major insurance brands — and let us handle the hard stuff.
- Lyric benefits – Lyric can be used during your daily activities, such as exercising, showering, talking on the phone, and sleeping. There are no batteries to change, no maintenance is needed, and no daily insertion or removal is required.