Dr. Daniel Lee is a fellowship-trained pediatric and adult ear and skull base surgeon. His primary clinical focus is on cochlear implant (CI) surgery in infants, children, and adults. He studies outcomes following CIs in children with malformed inner ears. He is currently overseeing two clinical studies of CI for single-sided deafness in children and adults. 

As Director of the Wilson Auditory Brainstem Implant (ABI) Program at Mass Eye and Ear/Mass General, Dr. Lee and his team works with infants, children, and adults who are deaf and cannot receive CIs. Specifically, this program cares for children and adults with Neurofibromatosis Type 2 (NF2) who are deaf from bilateral vestibular schwannomas as well as children and adults who are deaf from scarred inner ears or absent or damaged auditory nerves. Dr. Lee is currently overseeing two additional FDA clinical trials on the ABI in both children and adults who did not have NF2. 

Dr. Lee has an international referral center for the diagnosis and management of superior canal dehiscence (SCD) syndrome and offers both minimally invasive endoscopic-assisted middle fossa craniotomy and transmastoid SCD repair options to patients with disabling auditory and/or balance symptoms. 

Finally, he has developed a center of excellence for minimally invasive transcanal endoscopic ear surgery techniques in children and adults with cholesteatoma and chronic infections.