Dr. Raisis believes in creating an active partnership with his patients to achieve the best possible outcomes. Dr. Raisis earned his M.D. at the University of Colorado. He is board-certified in Neurological Surgery. Dr. Raisis has expertise in treatment of benign and malignant tumors involving the brain and spinal cord, particularly tumors involving the back portion of the brain. He also has expertise in neuro-oncology, particularly treatment of malignant tumors involving the brain and spinal cord; and in spinal disorders. Dr. Raisis' clinical interests include comprehensive treatment of benign and malignant brain and spinal cord tumors and management of spinal disorders. His research interests include close follow-up in the treatment of intracranial and spinal disorders.