David Gnewikow

Ph.D., Audiologist

Dr. Gnewikow received his master's degree and Ph.D. in Audiology from Vanderbilt University. Prior to founding Advanced Hearing Solutions in 2007, Dr. G worked as the director of the hearing clinic at the Vanderbilt Bill Wilkerson Center, served on the faculty at the Vanderbilt School of Medicine, and performed and published research in the field of hearing loss, hearing aids, and hearing in noise. He continues to serve as a guest lecturer annually for Vanderbilt audiology students.

Dr. Gnewikow is a passionate outdoorsman. When he's not in the office, he's almost surely out training his three Labrador Retrievers- Bella, Jet and Rizz, or hunting, fishing, or hiking somewhere in the wilderness. Dr. G and his wife Melanie have been married for 30 years and enjoy travelling and working with the youth at Providence Church.

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Samantha O'Leary

Au.D., Audiologist

Dr. O'Leary is a licensed audiologist with over 15 years of clinical experience specializing in comprehensive diagnostic hearing evaluations and advanced hearing aid technology. With a strong commitment to patient-centered care, she is dedicated to helping individuals improve their hearing health and overall quality of life through personalized treatment solutions and the latest innovations in hearing aid technology.

A native of Ohio, Dr. O’Leary earned her Bachelor of Science in Hearing, Speech, and Language from Ohio University. She went on to complete both her Master’s degree and Doctorate degree in Audiology at the University of Tennessee, where she developed a strong foundation in evidence-based clinical practice and auditory rehabilitation.

Outside of her professional work, Dr. O’Leary enjoys watching football, hiking, traveling, and spending time with her husband, three children, and their dog, Jax.

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Kelsey Clark

Front Office/Hearing Aid Tech

Kelsey has been a valued member of our team since 2017. She plays an important role in supporting our audiologists and ensuring every patient has a positive, seamless experience. Known for her reliability, attention to detail, and friendly demeanor, Kelsey helps make our office a welcoming place for patients and families.

Outside of work, Kelsey enjoys spending time with her partner, Carl, and their three children. As a family, they love getting away whenever they can—especially vacations to the beach, where they can relax, recharge, and make lasting memories together.

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Mikayla Fleming

Front Office/Hearing Aid Tech

Mikayla is passionate about providing compassionate, patient-centered care. She has been with AHS since 2023 and enjoys supporting patients throughout their hearing healthcare journey. A wife of 15 years and a mother of three, she balances her professional life with a love of the outdoors, traveling and crafting. Mikayla is a big fan of music and a dedicated coffee lover who enjoys the simple joy of family time.

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Melanie Gnewikow

Bookkeeper

Melanie has taken on many roles at Advanced Hearing Solutions since we opened in 2007. As a detail person, Melanie keeps our books, bills, and staff straight and loves it when all the numbers line up. Melanie has a gifted creative mind. She has worked for many years as a professional photographer and loves quilting and crafting. You can see her creations every year at the Wilson County/Tennessee State Fair where she routinely wins piles of blue ribbons.

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Meet Our Team

David Gnewikow

Samantha O'Leary

Kelsey Clark

Mikayla Fleming

Melanie Gnewikow