Dr. Mueller began practicing with Everett ENT in 1990. He is Board Certified in Otolaryngology and Otolaryngic Allergy. He received his medical degree from the University of Washington in 1982. He is a former Officer in the United States Air Force where he completed his residency training. His professional associations include the Snohomish County Medical Society, Washington State Medical Association, American Academy of Otolaryngic Allergy, Northwest Academy of Otolaryngology, and the Association of American Physicians and Surgeons. His expertise includes diagnosing and treating patients both medically and surgically, if necessary, who suffer from nasal and airway obstruction, chronic allergies, deviated nasal septum, enlarged tonsils, and many others.

Dr. Drumheller has been in private practice in the Everett area since 1979. He is Board Certified in Otolaryngology and is a diplomate of the American Academy of Otolaryngic Allergy. He received his Doctor of Osteopathic Medicine (DO) from Chicago College of Osteopathic Medicine in 1973. He completed his residency training in Otorhinolaryngology at Northwestern University Medical School in 1977. He is the past president of the American Rhinologic Society. His professional associations include the Snohomish County Medical Society, Washington State Medical Association, Northwest Academy of Otolaryngology, Pan American Allergy Society and the Association of American Physicians and Surgeons. His expertise includes diagnosing and treating patients both medically and surgically, if necessary, who suffer from nasal and airway obstruction, chronic allergies, deviated nasal septum, enlarged tonsils, and many others.