Important Information
We are sad to say that Dr. Jon C. Mills is relocating his otolaryngology practice as of March 31, 2015 and will be joining Peak ENT and Voice Center. As of April 1, 2015, Dr. Mills can be reached by contacting Peak ENT and Voice Center, 1030 Johnson Rd, Suite 350, Golden, CO 80401, phone: 720-401-2139.  As of March 13, 2015, Dr. Mills is no longer accepting new patients at Rocky Mountain ENT.  If you would like to remain under the care of Dr. Mills at his new location in Golden please inform us so we can copy your medical records and you can pick them up at Rocky Mountain ENT and take them with you... Otherwise...

Our present staff of highly qualified ENT doctors, (Dr. Seth Reiner, Dr. Thomas Gonsoulin and Jackie Smith)  will be happy to take care of all of your ENT considerations. Let the receptionist at Rocky Mountain ENT make these arrangements for you!  All of us at Rocky Mountain ENT  wish Dr. Mills the best of luck on his new endeavor!

Welcome to Rocky Mountain ENT

For more than 20 years, Rocky Mountain ENT Group has been dedicated to providing comprehensive, caring, and competent medical and surgical treatment for disorders of the head and neck, ears, nose, and throat. We treat both adult and pediatric patients.


Seth A. Reiner, M.D., F.A.C.S.
Thomas Gonsoulin, M.D., F.A.C.S.
Jackie Smith, Au.D.

Prepare for Your Visit - Click Here

Surgery Information - Click Here

Specializing In:

  • Pediatric and Adult Ear, Nose and Throat Care
  • Tonsil and Adenoid Disease
  • Problems Breathing Through the Nose
  • Sinus Infections and Polyps
  • Lumps and Bumps in the Neck
  • Thyroid and Parathyroid Surgery
  • Recurring Ear Infections or Fluid in the Ears
  • Hole in the Ear Drum
  • Comprehensive Hearing Evaluations
  • The Latest in Digital Hearing Aid Technology
  • Facial Trauma
  • Sleep Apnea and Sleep-Related Disorders
  • Facial Skin Cancers and Reconstruction
  • Cancer of the Throat, Voice Box, and Head and Neck
  • Voice and Swallowing Problems

Twitter Feed @RockyMtnENT

What's New?

Register for the Patient Portal

We have established a patient portal, where our patients will be able to securely access certain records, including test results. You can also use the portal to schedule appointments online. Even if you are new to our practice, you can still register online and schedule your appointment.

Tired of Sinus Problems?

See how a new procedure, Balloon Sinus Dilation, also known as "Balloon Sinuplasty," can help break the sinusitis cycle! The procedure can be performed quickly in the office, without general anesthesia, offers a fast recovery, is safe, and is clinically effective.
Hearing Aid

Do you suffer from hearing loss?

Is it time to get your hearing tested? Click below to take a quick, free online test to see if it's time for you to consider a visit for your hearing.

Also check out these nice informational resources about hearing aids from the
Better Hearing Institute:
Hearing Aid Guide Hearing Aid Guide Hearing Aid Guide
Your Guide to Hearing Aids Your Guide to Buying Hearing Aids Your Guide to Care and Maintenance of Hearing Aids