Discover the ASI Beltone Difference
With locations across Iowa and in Mitchell, South Dakota, ASI Beltone is committed to delivering personalized, state-of-the-art hearing care. Our team combines decades of experience with fresh perspectives—blending long-standing expertise with the latest innovations in hearing health.
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Our certified hearing care professionals are passionate about what they do and dedicated to ongoing education in the ever-evolving field of audiology. From comprehensive hearing evaluations to advanced hearing technology, we take pride in helping every patient find the right solution tailored to their unique needs and lifestyle. At ASI Beltone, we’re not just improving hearing—we’re enhancing lives through better hearing.
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​At ASI Beltone, we understand that hearing loss is personal—and so is the care you deserve. That’s why we take the time to get to know you, your lifestyle, and your hearing goals. Whether you're just beginning to notice changes in your hearing or you've been wearing hearing aids for years, our mission is to walk with you every step of the way. With access to Beltone’s award-winning technology and compassionate, local care, we empower you to stay connected to what matters most—family, friends, and the moments that make life meaningful.
Your Providers

Dr. Michael Sharp
Au.D., CCC-A
Dr. Michael Sharp, Au.D, CCC-A is a licensed audiologist and has been the owner of ASI Beltone since February of 2020. Specializing in Audiology Diagnostics, Hearing Aids and Auditory Processing Disorder.
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Locations: Davenport, Clinton

Starr Banwell
HCP
Starr Banwell, HCP has been a Hearing Care Practitioner since 2019. Her favorite part of her job is hearing someone say they can hear their loved ones speak to them again.
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Locations: Fort Dodge, Humboldt, Spirit Lake, Storm Lake

Clint Hinker
HIS
Clint Hinker, H.I.S. is a board-certified Hearing Instrument Specialist and has been helping patients with audiological testing, fittings and recommendations of hearing care products since 2008.
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Locations: Mitchell

Nathan Holmes
B.C.-HIS, B.A.
Nathan Holmes BC-HIS is a board-certified Hearing Instrument Specialist who provides hearing testing, hearing aid fittings and patient counseling care and services.
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Locations: Des Moines, Ankeny, Indianola

AnnMarie Kinsella
HIS
AnnMarie Kinsella, HIS has been a Hearing Instrument Specialist since 1997. AnnMarie has a Bachelor of Science degree in Speech Pathology from the University of Central Missouri in Warrensburg, Missouri.
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Locations: Creston, Osceola, Corydon, Chariton

Mason Olson
HIS
Mason Olson, HIS is a Hearing Instrument Specialist who has been helping patients live fuller lives and hear better since 2022.
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Locations: West Des Moines, Marshalltown, Corydon, Chariton

Robbi Hansen
HCP
Robbi Hansen, HCP is a Hearing Care Practitioner who has been helping patients live fuller lives and hear better since 2020.
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Locations: Spirit Lake, Storm Lake
Your Care Team

Anna
Boor
Marketing

Ashely
Kalkas
PCC
Creston, Osceola, Corydon, Chariton

Dana
Sieck
PCC
Mitchell

Debi
Vandevender
PCC
Creston, Osceola, Corydon, Chariton

Flor
Rodriguez
PCC
West Des Moines, Des Moines, Ankeny, Indianola, Marshalltown

Sheri
Book
PCC
Davenport, Clinton

Jessica
Stowe-Salvo
Manager

Kim
DeVries
Billing Manager

Missy
Palm
PCC
Fort Dodge, Humboldt