Office will be closed between Feb. 21st – Feb 23rd for training

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About Us

Meet your audiologist in Decatur, IL.

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Headshot of Therese Kistenfeger, audiologist at AOD Hearing Center, Decatur, IL

Therese M. Kistenfeger, Au.D., CCC-A

Doctor of Audiology

Dr. Therese Kistenfeger earned her Doctorate in Audiology at the University of Memphis in 2011 and her Bachelor of Science in Special Education (Deaf and Hard of Hearing) from Illinois State University in 2003. Dr. Kistenfeger is a licensed audiologist in the state of Illinois and is certified through the American Speech Language and Hearing Association (ASHA).

Dr. Kistenfeger specializes in pediatric and adult diagnostics, including hearing evaluations and auditory evoked potentials, as well as fitting hearing aids. Dr. Kistenfeger shows expertise in the selection and fitting of the latest digital hearing aid technology. She has a goal and hope for every patient that she is able to properly educate and work as a team with each patient to help them hear better in hopes that life becomes more enjoyable with improved ease of communication.

Meet the Professional

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Headshot Londa Willenborg, Office Manger at AOD Hearing Center, IL

Londa Willenborg

Office Manager

Londa currently works for AOD Hearing Aid Center and has been the Office Manager for over 20 years. Londa went to school to become a medical assistant. She then decided to become an Audiologist Assistant. Londa has had the privilege of working with several hearing aid companies to learn hands-on repairs, and new styles and technology that are available.

Londa has been an Audiologist Assistant for 15 years, and she has had the privilege of only working with Audiologists. That inspired her to become an assistant. Londa enjoys working with the public and watching them get a positive experience out of hearing with hearing aid(s). She loves working with people and her goal is to be kind and always help others.

Londa loves camping, boating, traveling with her husband, and spending time with friends and family.

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How We Give Back
to Our Community

AOD Hearing Aid Center is a proud member of the Decatur Chamber of Commerce. We do our best to be active in the community by providing hearing education to the people of Decatur. Every year we participate in Seniorama at the Decatur Civic Center. We also work with the VA to provide affordable hearing care for veterans.

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