Aaron S. Thiessen, MD

Aaron S. Thiessen, MD

Otolaryngology - Ear, Nose & Throat (ENT)
Medical Group
Ascension Medical Group
Ascension Medical Group Ascension Medical Group
Languages Spoken


Aaron Thiessen, MD, is an ENT with Ascension Medical Group Via Christi. Dr. Thiessen is board-certified in Otolaryngology. He provides diagnosis and treatment of head and neck conditions to patients of all ages. Dr. Thiessen has a special interest in sinus surgery, thyroid nodules, and head and neck cancer.

He's a diligent listener and works hard to build a relationship with his patients and their families. He understands the importance of good communication and hard work, having grown up on a pig farm in Kansas.

Outside of the office, Dr. Thiessen enjoys gardening, raising show cattle for 4-H and spending time with his wife and daughters.



  • University of Kansas School of Medicine


  • University of Missouri Hospital


Hospital Affiliations

  • Ascension Via Christi St. Francis
  • Ascension Via Christi St. Joseph
  • Ascension Via Christi St. Teresa


  • The American Board of Otolaryngology Head and Neck Surgery - Otolaryngology


Aaron S. Thiessen, MD offers services at multiple Kansas locations. Contact your preferred location to book an appointment.
Why Ascension
Ascension doctors are committed to getting to know you. They take time for real back-and-forth conversations with you so they can understand all aspects of you and your life. Because great care starts with seeing your whole picture.
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