Our Staff

We have developed an industry-leading brain retraining program that results in 98% patient success with hearing loss treatment.
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Brad Stewart, Au.D.

Doctor Of Audiology, Practice Owner

Office Locations: Allen, TX and Lewisville, TX


Dr. Stewart is the founder of ClearLife Hearing Care and the creator of the NeuroHearing Treatment Program and the NeuroTinnitus Treatment Program. By following industry best practices and developing new and effective treatment protocols, Dr. Stewart is able to achieve industry-leading patient outcomes.

He started ClearLife Hearing Care in 2014 with the mission to bring world-class audiology services to his community. In addition to working with patients in his clinics, Dr. Stewart also consults with audiologists across the US and internationally, focusing on strategies to improve the patient experience.

Dr. Stewart enjoys spending time with his wife and son, traveling, exercising, mountain biking, film and photography, and keeping up with the latest technology news. His favorite sound is flowing water.

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Kristen Crawford, Au.D.

Doctor Of Audiology

Office Locations: Allen, TX and Lewisville, TX


Dr. Crawford completed her Doctor of Audiology degree at the University of North Texas in 2020, and is proud to be part of the ClearLife Hearing Care team!

She graduated from the University of North Texas in 2015 with a bachelor’s degree in Speech-Language Pathology and Audiology. She completed her doctorate at the University of North Texas and graduated in May of 2020 with a 4.0 GPA. She previously worked as a hearing aid technician at the UNT Speech and Hearing Center and was the president of UNT’s Student Academy of Audiology from 2017-2018.

Dr. Crawford has completed over 1600 supervised clinical hours in audiologic testing, treating hearing loss, tinnitus treatment, cerumen management, and vestibular testing, including a full year of clinical training with Dr. Stewart at ClearLife Hearing Care.

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Barb Miller

Client Care Specialist

Office Locations: Allen, TX and Lewisville, TX


Barb serves as our Client Care Specialist. When someone calls our office, there is a good chance she will be the one answering the phone. When not on the phone, she works doing various tasks on the computer and around the office. Whatever she is doing, she likes to have fun doing it.

Barb enjoys spending time with her family, which has recently grown with two granddaughters. She's a proud Texas A&M alumni. Barb also likes reading, jigsaw puzzles, walking, and traveling.

Barb's favorite sound is hearing her grandchildren.

Sara Stewart

Administrative guru


Sara is the behind-the-scenes administrative guru. From insurance to invoices, she keeps track of all the details!

In her free time, she enjoys reading, writing, dancing and spending time with family (fun fact: Sara is married to Dr. Stewart!). She also loves being a mom to her 6 year old son!

Sara's favorite sound is the sound of feet crunching on leaves.

Stephanie Waller

Audiology Assistant


Stephanie is the newest member of the ClearLife family! She enjoys working beside Dr. Stewart and Dr. Crawford as an Audiology Assistant, helping patients understand how to use and care for their hearing aids. She also gives hearing aids a deep cleaning at each appointment to ensure they are in tip-top condition, and works behind the scenes to help ensure each patient has a positive experience.

Stephanie is currently a Psychology student at UNT. When not working or at school, she enjoys spending time with her two cats.

Her favorite sound is a Texas thunderstorm.