His areas of focus and expertise include: functional and stereotactic surgery for movement disorders such as Parkinson’s disease; essential tremor, and dystonia; stereotactic radiosurgery and microvascular decompression for treatment of trigeminal neuralgia; treatment of benign and malignant tumors of the brain and spine, including minimally-invasive stereotactic radiosurgery and trans-nasal approaches for pituitary-region tumors; and treatment of degenerative conditions of the spine, including minimally-invasive microscopic approaches and spinal instrumentation.