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Our mission is to provide outstanding, cutting-edge clinical care, research, and state-of-the-art training in Otolaryngology

Department of Otolaryngology

The University of Colorado Sinus Center

Rhinology & Endoscopic Skull Base Surgery

The University of Colorado Sinus Center is the premier center of excellence in the Rocky Mountain region for the comprehensive medical and surgical management of patients with diseases of the nose and sinus. Our expertise includes a broad range of disorders from sinusitis and nasal polyps to complicated tumors of the nose, sinus, and skull base utilizing state-of-the-art minimally-invasive surgical techniques.

The University of Colorado Sinus Center is committed to patient-centered care, which includes respect for each patient’s values, preferences, and expectations; the coordination and integration of care; communication and education; and the involvement of family and friends. Through superior medical and surgical care, research and education, we strive to improve the quality of life of our patients with diseases of the nose, sinus, and skull base. Our group is actively involved in research in the following areas:

  • Understanding the mechanisms of inflammatory sinus disease
  • Cystic fibrosis, fungal sinusitis, nasal polyposis
  • Exploring genetic and molecular factors in chronic sinusitis
  • Novel surgical techniques for approaching the orbit and skull base
  • Minimally-invasive diagnostic and surgical approaches for sinusitis and skull base tumors
  • Collaborative approach with physicians and researchers at the University of Colorado-Boulder, University of Colorado School of Medicine, and National Jewish Health.
  • Development of collaborative team approach to minimally-invasive skull base surgery utilizing neurosurgeons, orbital surgeons, and our endoscopic rhinologic surgeons.


Todd Kingdom, MD  

Todd T. Kingdom, MD

Director of the University of Colorado Sinus Center

Dr. Kingdom has been Director of Rhinology and Sinus Surgery since joining the University of Colorado School of Medicine faculty in 2002 and holds the rank of Professor within the Department of Otolaryngology. Dr. Kingdom’s clinical practice is based at the University of Colorado Hospital and National Jewish Health. His areas of expertise include the comprehensive management of sinus and nasal disorders, minimally-invasive sinus and orbital surgery, and management of sinus and skull base tumors.

Vijay R. Ramakrishnan, MD 

Vijay R. Ramakrishnan, MD

Dr. Ramakrishnan is a recent addition to the Sinus Center, having completed his fellowship training in advanced rhinology and skull base surgery at the University of Pennsylvania. His areas of expertise include nasal obstruction, chronic sinusitis and nasal polyps, revision sinus surgery, complex sino-orbital diseases, CSF leaks and skull base tumors.

Robie Gray 

Robie Gray, PA-C, BS

Recently joining the Sinus Center after working in the field of allergy, asthma, and immunology in Denver for the previous 6 years, Robie brings this specialized experience and her specific interests in nasal and sinus disease to our group. She has developed interest in the effective coordination of patient care, allergic rhinitis, and chronic sinusitis.