Clinical Interests: Neurovascular Surgery, Microsurgery, Neuro-critical Care, Stroke, Stereotactic Radiosurgery

Medical Education: Loma Linda University, California (M.D. 1980)

Residency: Cleveland Clinic, Ohio (Neurosurgery 1981-1986)

Fellowship: Royal Infirmary of Edinburgh, Scotland (Neurotrauma, 1983); Barrow Neurological Institute, Arizona (Neurovascular surgery, 1985-1986)

Board Certification: American Board of Neurological Surgery (1989)

Academic Appointment: Professor of Neurosurgery (with tenure), Northwestern University Feinberg School of Medicine, Vice-Chairman for Research and Program Development. Previous professorships at the Cleveland Clinic, Yale University and University of Colorado.

Research Interests: Vascular biology, genetics and outcomes science in neurovascular disease and stroke

Publications: 250 papers and chapters; eleven books; 350 major scientific presentations and invited lectureships

Honors:  51^st Past-president of Congress of Neurological Surgeons; Past -chairman Joint Section on Cerebrovascular Surgery of the American Association of Neurological Surgeons and Congress of Neurological Surgeons; Board of Governors American College of Surgeons; Executive Committee American Stroke Association; Elected Member American Academy of Neurological Surgeons and Society of Neurological surgeons (Senior Society); Who’s Who,  Best Doctors and Best Teachers in America.