Doctor Profile Request an Appointment Location: DRH Health Allergy Ear, Nose and Throat Address: 1401 Duncan Regional Loop Road Duncan, OK 73533 Phone: (580) 252-0100 Fax: (580)-252-0106 Glen Cottrill PA-C Allergy, Ear/Nose/Throat, Otolaryngology DRH Health Allergy Ear, Nose and ThroatDuncan Regional Hospital Community: Duncan University of Nebraska