Physicians
Ryan Van De Graaff, MD
Dr. Van De Graaff specializes in otology and laryngology. He was raised in Orem, Utah and completed his undergraduate degree in Zoology with a minor in German Literature from Brigham Young University in 1994. Dr. Van De Graaff graduated from the University of Utah Medical School in 1998 and completed his otolaryngology residency in 2003 at the University of Colorado Health Sciences Center in Denver, Colorado. He has been board certified by the American Board of Otolaryngology since 2004 and successfully renewed his certification in 2014. After practicing in Lincoln, Nebraska for five years, he relocated to Boise with his family and joined Southwest Idaho Ear, Nose and Throat in 2008.
Brian A. Walker, MD
Brian Walker is dedicated to understanding patient motivations and desires to maximize outcomes during treatment. He strives to help patients recover from the effects of congenital, post-operative and traumatic effects on the face so they can regain a sense of their identity back. He specializes in rhinoplasty, mohs reconstruction, facial aging, facial trauma and reconstruction, scar revision, Botox and regenerative medicine.
Dr. Walker earned his medical degree from the University of Washington School of Medicine. He completed his residency in Otolaryngology – Head and Neck Surgery at the Mayo Clinic in Scottsdale, Arizona, and a fellowship in Facial Plastic and Reconstructive Surgery at Toriumi Facial Plastic Surgery and Rush University Medical Center in Chicago. He is a member of the American Academy of Facial Plastic Surgery (AAFPRS) and the American Academy of Otolaryngology – Head and Neck Surgery (AAO-HNS).
Alexander Rock, MD
Dr. Rock is a general otolaryngologist interested in surgical treatments for sleep apnea, nasal and sinus surgery, thyroid/parathyroid surgery, aggressive skin cancers and other head and neck tumors. He grew up in Salt Lake City, Utah, and completed his undergraduate degree in biology with a minor in business at the University of Utah in 2004. Dr. Rock took several years off to pursue his interest in cycling before moving to Washington, DC, to attend The George Washington University School of Medicine and Health Sciences, where he graduated with honors in 2015. After completing his otolaryngology residency at The Ohio State University in 2020, Dr. Rock and his family moved to Boise to join Southwest Idaho Ear, Nose and Throat. He was recently named a Physician of Excellence for his work as an Inspire implant surgeon.
Tyson Nielsen, MD
Dr. Tyson Nielsen specializes in head & neck surgery with an emphasis on oncology and reconstruction. He was born and raised in Marsing, Idaho. He completed his undergraduate studies at Northwest Nazarene University. He then attended the University of Washington School of Medicine as part of the WWAMI program. Upon graduating from medical school he then completed his residency in Otolaryngology – Head & Neck Surgery at the University of Arizona in Tucson. Following residency, Dr. Nielsen pursued advanced fellowship training in head & neck surgery with emphasis on microvascular free flap reconstruction and transoral robotic surgery in Omaha, Nebraska through the Methodist – Creighton University health system. Dr. Nielsen, his wife, their two daughters, and twin boys, were excited to have the opportunity to return home to the Treasure Valley following his medical training
David Lewis, DO
Dr. David Lewis is a general otolaryngologist with expertise in treating sinus disease, tonsillitis, sleep apnea and tumors of the thyroid, parathyroid and salivary glands. Dr. Lewis offers a wide variety of state-of-the-art medical and surgical treatments, including the Inspire device for sleep apnea, no splint septoplasty and no cautery tonsillectomy. He grew up in Bakersfield, California, and completed his undergraduate degree in economics at Brigham Young University in 2013. Dr. Lewis attended medical school at Des Moines University, where he graduated near the top of his class in 2019. After completing his otolaryngology residency at Oklahoma State University Medical Center in 2024, Dr. Lewis moved to Boise to join Southwest Idaho Ear, Nose and Throat along with his wife and five children.
Physician Assistants
Thomas F. Douthit, PA
Thomas Douthit received his undergraduate degree from Boise State University and his Physician Assistant training from the University of Washington. He completed his Masters of Physician Assistant Studies with an emphasis in otolaryngology from the University of Nebraska. Tom has been certified by the NCCPA since 2003.
Jonathan Miller, PA-C
Jonathan Miller earned a Master of Health Sciences in Physician Assistant Studies from Drexel University (formerly MCP Hahnemann) in 2004. He has practiced ENT in Twin Falls, Idaho; Grants Pass, Oregon; Surprise, Arizona; and is happy to be practicing in Idaho again. Jonathan has worked in the ENT specialty his entire career and is certified by the National Commission on Certification of Physician Assistants) and the Society of Physician Assistants in Otolarygology/Head & Neck Surgery. He enjoys seeing patients of all ages.
Audiologists
Shalise Adams, AuD, CCC-A
Shalise Adams specializes in adult and pediatric hearing loss, bone anchored hearing aids (BAHA), diagnostics, single-sided deafness, the selection and fitting of hearing aids, and assistive listening devices. She helps each patient examine their specific needs, concerns, and presents options to suit their individual hearing healthcare needs. She has been a clinical audiologist at Southwest Idaho Hearing and Balance since 2008. Dr. Adams attended Utah State University where she received a Doctorate in Audiology and Bachelors of Science in Communication Disorders graduating Suma Cum Laude. She holds the Certificate of Clinical Competence in Audiology (CCC-A) from the American Speech-Language-Hearing Association (ASHA) and is a Fellow of the American Academy of Audiology (F-AAA).
Lindsay Walles, AuD, CCC-A
Lindsay Walles specializes in the diagnoses, treatment, and education of hearing loss and balance disorders to patients of all ages. She provides comprehensive services for hearing aids and bone anchored hearing aids (BAHA). Dr. Walles is passionate about working with patients to achieve the best outcomes and improve quality of life. Dr. Walles received her bachelor’s degree in Communication Sciences and Disorders from Ohio University in 2014 and her doctorate of Audiology from Central Michigan University in 2018. She completed her clinical externship at St. Luke’s Hearing and Balance Center in Boise, Idaho.
Haylee Greer, AuD, CCC-A
Haylee Greer specializes in adult and pediatric hearing loss, vestibular and balance disorders, bone-anchored hearing aids (BAHA), osseointegrated devices and the selection and fitting of hearing aids. She is dedicated to helping her patients achieve their hearing and communication goals. Dr. Greer received her Doctorate in Audiology from the University of Utah and Bachelor of Science in Speech and Language Pathology and Audiology from the University of Nevada, Reno.
Adrienne Reiswig, AuD, CCC-A
Adrienne is dedicated to providing diagnostic testing for hearing loss, vestibular and balance disorders and amplification selection, all rooted in evidence-based practice and tailored to individual patient needs and lifestyle. Her expertise extends to hearing aid selection and bone anchor implant systems. Committed to education and hearing loss prevention, Adrienne also specializes in crafting personalized patient hearing protection solutions. She earned her bachelor’s degree in communication science and disorders in 2020 and her Doctor of Audiology from Idaho State University in 2024.