Book online now for Dr Douglas Leventhal who is a board certified ear nose and throat doctor (otolaryngologist) in Oradell NJ with ENT and Allergy Associates. Dr Leventhal provides services for Adult Ear, Nose and Throat and Advanced Sinus/Skull base and Balloon Sinus Procedure and Facial Plastic Surgery and Pediatric Ear, Nose and Throat. Read verified patient reviews and ratings for Dr ....