Humboldt Audiology

831 Harris St Ste D Eureka, CA 95503
(707) 382-3595


Photo of Trisha Ostermeier, AuD, FAAA from Humboldt Audiology

Trisha Ostermeier,


Dr. Trisha Ostermeier is a licensed audiologist who earned her bachelor’s degree from the University of Arizona and a Doctoral degree from Central Michigan University.  She is a fellow of the American Academy of Audiology and licensed in the state of California. Dr. Ostermeier gained experience working in a variety of clinical settings including private and hospital. She enjoys working with patients of every age and specializes in assessing and treating hearing loss.


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Healthy Hearing posts all positive and negative reviews that meet publishing criteria.

Read 2 verified patient reviews for Humboldt Audiology! Their average review score is 5 () from 2 reviews.

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“I had a fantastic experience at Humboldt Audiology. Dr. Speer, who is very knowledgeable, gave me some very extensive hearing tests (I've had other numerous hearing tests all my life) to determine which ranges of my hearing that was poor. I have had Meniere's disease, for over 25 years now, which ends up slowly destroying your hearing. I have ended up with really poor word recognition over the years. Dr. Speer introduced me to a cross-over type hearing aid set, that has the blue-tooth capability to transfer the sound from my deaf ear into the better ear. The ability to adjust the sound frequencies, via their phone app, has helped me with getting the right ranges of sound I need. The support offered by Humboldt Audiology is also quite amazing. By providing continued cleaning, parts, and batteries with your hearing amplifier purchase through them I couldn't be any happier. ”

Stephen S. of Fortuna, CA   
01/30/2020    Review submitted online

“Everyone is very professional, experienced, kind & patient. I am very happy with the services I have received from all the staff at Humboldt Audiology. ”

Rita C. of Fortuna, CA   
08/24/2019    Review submitted online

Clinic details

hear what you've been missing

We are a locally owned and operated audiology practice that serves patients of all ages. Our doctors of audiology provide comprehensive diagnostic testing and the latest in technology hearing aids and devices. We are an AudigyCertified practice providing the highest quality, comprehensive, personalized hearing care services available. 

Hearing care services

We offer a full array of assistive listening devices, custom ear plugs for musicians, swimmers and surfers, as well as musician's monitors and electronic ear protection for hunters.

We also offer the following services:

  • Complete hearing evaluations
  • Newborn hearing screening
  • Video otoscopy
  • Hearing aid evaluations, counseling, selection and fittings
  • On-site hearing aid repairs and modification
  • Real ear analysis of hearing aid performance


(707) 382-3595

Hours of operation

Monday9 am - 5 pm
by appointment
Tuesday9 am - 5 pm
by appointment
Wednesday9 am - 5 pm
by appointment
Thursday9 am - 5 pm
by appointment
Friday9 am - 12 pm
by appointment
Evening and/or weekend hours available by appointment. Please call to schedule.

Clinic links

Accepted forms of payment

  • Visa
  • MasterCard
  • Discover
  • Cash
  • Check
  • Debit
  • Financing available for those who qualify
  • Insurance accepted, please call for details
Disclaimer: This clinic profile is for general information purposes only.
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