About Comprehensive Hearing Services – Helena
Monday 8:30AM – 5:00PM
Tuesday 8:30AM – 5:00PM
Wednesday 8:30AM – 5:00PM
Thursday 8:30AM – 5:00PM
Friday 8:30AM – 3:00PM
Saturday Closed
Sunday Closed


ApprovedDr. Hillary Carter is the owner and an audiologist at Comprehensive Hearing Services. She earned her bachelor’s and master’s degrees at the University of South Dakota, then headed to Salus University for her doctorate in audiology. Dr. Carter moved to Helena to be closer to family and joined our practice in 2007, becoming owner in 2009. She and her husband, who works for the state of Montana, enjoy raising their children and spending time outdoors camping, hiking, and skiing. Dr. Carter is a member of the American Academy of Audiology and the Montana Speech-Language-Hearing Association and has served on several boards, including The Salvation Army and Audigy’s Member Advisory Board.
Dr. Marilyn Hildreth has dedicated over 25 years to improving lives through better hearing. She earned her Doctor of Audiology from the University of Florida and holds both master’s and bachelor’s degrees from California State University, Long Beach. Her career experience spans clinical care, education, and business development for a major hearing aid manufacturer. Inspired by her experience with a loved one’s hearing loss, Dr. Hildreth understands its impact on families and prioritizes patient-centered care. She values direct patient interaction and the joy of improving lives through beter hearing.
Dr. Sobel is an audiologist and speech-language pathologist who joined our practice during the summer of 2023. Since then, he has been diligently serving our patients with patient-centered, comprehensive hearing care. Originally from the picturesque state of Michigan, Dr. Sobel brings a wealth of experience in audiology, complemented by his licensing as a speech pathologist. His diverse expertise spans both fields, making him an invaluable asset to our practice. Dr. Sobel’s commitment to improving patient outcomes through personalized care and attention to detail ensures every patient receives the highest level of service and care possible.
Emily Hanson, a licensed hearing instrument specialist, brings her expertise and compassionate care to her patients daily. Dedicated to improving the hearing health of her community, Emily offers personalized support with hearing aid fittings, adjustments, and ongoing care. She is actively involved in the Helena community, serving on the Parent-Teacher Organization at Warren Elementary School and volunteering regularly with Toys for Tots. She organizes food/clothing drives and school events and assists various local organizations. In her free time, Emily enjoys outdoor adventures with her husband and two boys and is a passionate sports fan, especially rooting for her Oklahoma City Thunder.
Working with an Audiologist that follows best practices (just like Dr. Cliff does in his clinics) is the key to a life-transforming hearing care experience.
That’s why our network was created, to help people just like you find a local audiologist that follows Best Practices.

Reconnect with everything you’ve been missing. The Guided Hearing Experience is the first step to understanding whether you may have hearing loss, and is a helpful way to prepare for a full evaluation with a certified provider.

Untreated hearing loss can slowly affect more than communication. It can increase the risk of isolation, impact mood, and contribute to cognitive decline over time. The good news is that taking the first step toward understanding your hearing is simple and empowering.

Hearing is complex, and an online screener only tells part of the story. HearingLoss.com–certified professionals provide the highest level of clinical and patient care to give you a complete and meaningful understanding of your hearing.