Physicians

Robert Nason, M.D.
Robert Nason, M.D.
Dr. Robert Nason serves the families of Austin and Cedar Park, Texas at ENT Specialists of Austin. Dr. Nason is an ENT doctor with board certifications in otolaryngology and head and neck surgery and fellowship training in pediatric otolaryngology.

Dr. Nason graduated magna cum laude from Rice University before earning his medical degree from the University of Texas Medical Branch at Galveston. There, he won the Edward Randall Medal for Academic Excellence and was inducted into the Alpha Omega Alpha honor society.

After graduation, Dr. Nason served his internship and residency at the prestigious Washington University in Saint Louis, where he participated in NIH-funded medical research for three years. Dr. Nason went on to complete his pediatric otolaryngology fellowship at the University of California, San Diego. During his comprehensive educational training, he learned advanced techniques to treat adults and children.

Dr. Nason maintains memberships with the American Academy of Otolaryngology/Head and Neck Surgery and the Travis County Medical Society. He has published numerous journal articles, contributed to book chapters, and presented at national meetings.

Dr. Nason values his time with his wife and two children. He also enjoys playing ultimate frisbee, running, and playing tennis.

Lindsay E. Young, M.D.
Lindsay E. Young, M.D.
Dr. Lindsay E. Young is an otolaryngologist and board-certified head and neck surgeon at ENT Specialists of Austin. She is trained to treat both pediatric and adult patients and serves the local communities of Austin and Cedar Park, Texas.

Dr. Young grew up in San Antonio and attended college at Southern Methodist University, where she graduated summa cum laude with a major in anthropology and minors in music and pre-medical studies. She went on to medical school at UT Southwestern Medical Center in Dallas, where she was elected into Alpha Omega Alpha — the only nationally recognized honor society for medical students — and graduated in the top of her class.

She completed her general surgery internship at Parkland Hospital and her otolaryngology residency at UT Southwestern Medical Center in Dallas. In residency, Dr. Young was awarded the American Academy of Otolaryngology Resident Leadership Grant, she traveled to Honduras on a medical mission trip with Surgical Medical Assistance Relief Teams (S.M.A.R.T.), and she published multiple scientific articles in several peer-reviewed medical journals.

Dr. Young is a member of the Texas Medical Association, member of the Travis County Medical Society, member of the American Academy of Otolaryngology/Head and Neck Surgery, and served as President of the Austin Society of Otolaryngology from 2016-2018. She has a special interest in thyroid and salivary gland surgery, head and neck cancer, chronic sinusitis, functional and cosmetic nasal surgery (rhinoplasty), hearing and ear surgery, and voice complaints.

In her spare time, Dr. Young enjoys time outside of work with her husband, her son and daughter, and their dog, Mr. Pickles, a rescued mixed breed. She also enjoys live music and performing arts, traveling with her family, spending time with friends, and sprint triathalons.

Kelsey Horter Mothersole, MD
Kelsey Horter Mothersole, MD
Dr. Mothersole is an ENT doctor who serves adult and pediatric patients in Austin and Cedar Park, Texas. She is board-certified in Otolaryngology and Head and Neck Surgery.

Dr. Mothersole grew up in Fort Worth, Texas. She graduated cum laude from Rice University in 2012 with a B.S. in Bioengineering. She then earned her M.D. with Honor at Baylor College of Medicine in 2016, where she received the award for Outstanding Achievement in Otolaryngology-Head and Neck Surgery.

Dr. Mothersole completed her Otolaryngology internship and residency at UT Southwestern Medical Center in Dallas; during that time she also trained at Parkland Hospital, Children’s Medical Center Dallas, and the Dallas VA Medical Center. Dr. Mothersole has published multiple journal articles and presented academic posters at national meetings. She is an active member of the American Academy of Otolaryngology-Head & Neck Surgery, the Texas Medical Association, and the Travis County Medical Society.

Outside of work, Dr. Mothersole enjoys spending time with her husband, her two sons, and their dog Leia. They enjoy traveling together and are trying to visit every National Park!

Alexander Hansen, MD
Alexander Hansen, MD
Dr. Hansen is an ENT physician who serves adult and pediatric patients in Austin and Cedar Park, Texas.

Dr. Hansen grew up outside of Atlanta, Georgia. He graduated summa cum laude with honors from the University of Georgia with a B.S. in Biology and Psychology and a minor in Spanish. He then earned his M.D. at UT Southwestern in Dallas where he was inducted into the Alpha Omega Alpha medical honor society.

After graduation, Dr. Hansen completed his Otolaryngology internship and residency at UT Southwestern Medical Center in Dallas. His training involved rotations at Parkland Hospital, Children’s Medical Center in Dallas, and the Dallas VA Hospital. Dr. Hansen has published multiple journal articles and presented at national meetings. He is an active member of the American Academy of Otolaryngology-Head & Neck Surgery, the Texas Medical Association, and the Travis County Medical Society.

In his spare time, Dr. Hansen enjoys attending concerts, collecting vinyl records, and cheering on the Georgia Bulldogs football team.

Audiologists

Tracy Armstrong M.A., CCC-A
Tracy Armstrong M.A., CCC-A
Tracy joined the practice in 2018. She has extensive experience in the field of Audiology. Tracy received her Master’s Degree in Audiology from the University of Texas in 1992. Throughout her career, she has worked extensively in the areas of aural rehabilitation, amplification services, diagnostic testing, vestibular evaluation, tinnitus management, cochlear implants, and bone-anchored auditory prosthetic devices. Tracy has taught hearing loss coping skills classes to the community, she has served as the American Tinnitus Association’s San Antonio representative, and she has been a guest speaker at many SHHH (Self Help for Hard of Hearing) meetings.

Developing a personal relationship with her patients is what Tracy enjoys the most about working as an audiologist, and she works hard to take the time to understand each individual patient’s communication needs and challenges. Tracy works with the latest hearing aid technology and multiple manufacturers to make sure that each patient has the best hearing aids possible for them.

Tracy enjoys hiking and traveling with her twins, Jeb and Sadie. She is an active volunteer in their school, having recently served as the president of her daughter’s high school dance team. Tracy dedicates much of her spare time to volunteering: she currently serves on the RRISD Bond Oversight Committee, she has volunteered as a master naturalist where she spent time recording the habitats of salamanders, and she often finds herself agreeing to foster puppies through Austin Pets Alive.

Chelsea Aji Au.D. CCC-A
Chelsea Aji Au.D. CCC-A
Chelsea Aji received her Doctorate in Audiology from the University of Wisconsin-Madison in 2018. Dr. Chelsea Aji has experience in the evaluation and treatment of children and adults with hearing loss. She provides excellent hearing care and offers unique hearing solutions to improve her patients’ quality of life. Her services include children and adult diagnostic audiometry, pediatric visual reinforcement audiometry, pediatric conditioned-play audiometry, hearing aid dispensing and hearing aid counseling.

Dr. Chelsea Aji has a passion for patient care and a strong belief in the power of communication and the profound impact of human connection. She was drawn to the field of audiology starting at a very young age, having grown up witness to several family members’ struggles with hearing loss. This personal connection encouraged her to learn all she could about the process of hearing and inspired her to help others do the same. She is honored to work with patients throughout their hearing journey, aiding in their improved connection with the world and overall quality of life.

In addition to her passion to serve others, Dr. Chelsea Aji enjoys spending time outdoors, hiking, swimming, and playing with her dog, Pita.

Sabrina Olivia, Au.D., CCC-A
Sabrina Olivia, Au.D., CCC-A
Sabrina Olivia received her Master’s Degree in Communication Sciences and Disorders at the University of Texas at Austin and her Doctorate in Audiology at Arizona School of Health Sciences and has enjoyed a career including working in private practice as well as the ENT office setting.

Her first exposure to Audiology involved her father’s military service-related hearing loss and the role it played in their relationship. Once he received and began to use hearing aids a new world of communication opened up which solidified her desire to help others achieve the same success in their personal and professional lives. When not at work, Dr. Olivia enjoys cooking, reading and spending time with her husband, cats and dogs.

Danielle Jorgenson, Au.D., CCC-A
Danielle Jorgenson, Au.D., CCC-A
Dr. Danielle Jorgenson received her Doctorate in Audiology from the University of Wisconsin-Madison in 2021. She is a certified member of the American Speech-Language-Hearing Association.

Dr. Jorgenson has experience in various areas of audiology, including diagnostic audiology, amplification services, vestibular evaluation, tinnitus management, and cochlear implants. Throughout her clinical experience, she has developed strong interest in adult diagnostic audiometry and providing amplification services.

Dr. Jorgenson recognizes that hearing loss impacts the quality of life of both patients and their loved ones. She believes that every patient is unique and deserves a customized approach to hearing care. Her favorite part of working as an audiologist is building personal relationships with her patients, as she learns about their individual communication needs and challenges. Dr. Jorgenson believes that patient education, along with appropriate technology and patient motivation, are important for maximizing successful outcomes. She truly enjoys supporting patients on their journey to better hearing.