Dr. Philip E. Stieg is the Chairman of the Department of Neurological Surgery at the Weill Cornell Medical College and the Neurosurgeon-in-Chief at New York-Presbyterian Hospital, Weill Cornell Medical Center.

Training: Dr. Stieg received his B.S. degree from the University of Wisconsin in 1974. He earned a Ph.D. in anatomy/neuroscience from Union University and a M.D. from the Medical College of Wisconsin. He trained at the University of Texas Southwestern Medical School (Parkland Memorial Hospital) with Drs. Duke Samson and Hunt Batjer. He had a fellowship in cell transplantation for restorative neurological function at Karolinska Institute in Stockholm, Sweden, before joining Harvard Medical School as an Associate Professor of Neurosurgery. He was also Associate Chief of Neurosurgery at Brigham and Women's Hospital in Boston.

Surgical Specialties and Clinical Interests: Dr. Stieg surgical specialties include treatment for blockage of blood to the brain, including aneurysms, carotid disease, and arteriovenous malformations. His expertise also focuses on conditions treated by skull base surgery, including acoustic neuromas, meningiomas, chordomas, and glomus jugular tumors.

Research: Dr. Stieg's research interests include cerebral protection and restorative function. He is also interested in neural transplantation and neuronal regeneration after stroke. His initial studies focused on understanding the mechanisms of injury in the central nervous system after trauma. His laboratory was one of the first to develop and characterize primary cultures of astroglial cells. Dr. Stieg's recent efforts have been focused on novel approaches to surgery of the skull base.

Dr. Stieg's expertise in cerebrovascular disorders combines with his research interests in stem cell biology and cerebral transplantation for restoring neurological function. Dr. Stieg has implemented a multifaceted approach to the management of neurosurgical disorders such as carotid artery disease, vascular malformations, aneurysms, epilepsy, brain tumors, trauma, pediatric disorders, spinal cord problems and functional diseases, including Parkinson's.