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Mark Willis, MD

Assistant Professor

Clinical Office:

1500 Park Central Drive, Ste 501
Highlands Ranch, CO 80129

Appointments:  720-516-5000

Academic Office:

12631 E. 17th Avenue, B205
Aurora, CO 80045

Phone: 303-724-1950
Fax: 303-724-1961

Hospital Affiliations

UCHealth Highlands Ranch Hospital

University of Colorado Hospital

Children's Hospital Colorado

Clinical Interests

My clinical interests include all aspects of otolaryngology such as pediatric and adult general ENT care, hearing disorders, dizziness and vertigo, sleep apnea and snoring, thyroid and parathyroid disorders, endoscopic sinus surgery, voice and swallowing disorders, and plastic and reconstructive surgery. 


Otolaryngology, Board Certification

Conditions & Treatments​
  • ​Ear, Nose, and Throat (ENT) - Dysphagia (Trouble Swallowing)
  • Ear, Nose, and Throat (ENT) - Ear Infection
  • Ear, Nose, and Throat (ENT) - Eardrum Perforation
  • Ear, Nose, and Throat (ENT) - Head and Neck Tumors
  • Ear, Nose, and Throat (ENT) - Hearing Loss
  • Ear, Nose, and Throat (ENT) - Hoarseness
  • Ear, Nose, and Throat (ENT) - Nasal Polyps
  • Ear, Nose, and Throat (ENT) - Salivary Gland Diseases/Stones
  • Ear, Nose, and Throat (ENT) - Sleep Apnea Surgery
  • Ear, Nose, and Throat (ENT) - Smell and Taste Disorders
  • Ear, Nose, and Throat (ENT) - Snoring
  • Ear, Nose, and Throat (ENT) - Tinnitus
  • Ear, Nose, and Throat (ENT) - Tonsillitis
  • ​​​​​Ear, Nose, and Throat (ENT) - Vocal Cord Paralysis​
  • Endocrine Systems (Hormones) - Thyroid Cancer
  • Endocrine Systems (Hormones) - Thyroid Disease
Medical Schools:
  • MD, University of Colorado Denver School of Medicine (2007)
  • University of Utah Medical Center Program (2008)
Residency Program:
  • University of Utah Medical Center Program, Otolaryngology (2012)