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Demetrius Maraganore, MD | Julian Bailes, MD | Joseph Alleva, MD, MBA

Medical Director, NorthShore Neurological Institute
Chairman, Department of Neurology


Demetrius Maraganore, MD, is a nationally and internationally renowned expert on Parkinson’s disease and other movement disorders. He has been recognized as one of the world’s 20 most cited experts on Parkinson’s disease in the 21st century (Aaron A. Sorenson landmark study, published in the inaugural issue of the Journal of Parkinson's Disease) and as a top 1% neurologist by U.S. News and World Report. He has more than 150 peer-reviewed, full-length paper publications and nearly 300 publications total. At NorthShore University HealthSystem (NorthShore), he is the Ruth Cain Ruggles Chairman of the Department of Neurology, and is Co-Director of the NorthShore Neurological Institute. He previously served as the Chair of the Division of Movement Disorders at the Mayo Clinic in Rochester, Minnesota.

A Chicago native, Dr. Maraganore attended Northwestern University Medical School and then left for neurology residency training at the Mayo Clinic. Dr. Maraganore was then an Honorary Clinical Research Fellow in both Movement Disorders and Neurogenetics at the National Hospital for Neurology and Neurosurgery in London, England. After returning to the faculty of the Mayo Clinic, Dr. Maraganore quickly rose to the rank of Professor of Neurology. He is widely recognized as an expert in neurological research, particularly in the complex genetic and environmental causes of Parkinson’s disease. His team performed the first genome-wide association study of any neurological disorder (and specifically, Parkinson’s disease). His Mayo research team received continuous funding from the National Institutes of Health, the Michael J. Fox Foundation and from other extramural sources for more than 15 years, totaling more than $20 million. His work has resulted in new methods to predict and treat Parkinson’s disease. He also founded and continues to lead the Genetic Epidemiology of Parkinson’s Disease (GEO-PD) Consortium. GEO-PD includes 57 sites from 29 countries and 6 continents that share DNA and data for 38,686 PD cases and 34,871 control subjects.

The Ruth Cain Ruggles Chairmanship offered Dr. Maraganore the opportunity to return to practice neurology in his hometown of Chicago and to continue his research at NorthShore. His vision is to develop methods to predict, prevent and halt neurological diseases by leveraging NorthShore’s clinical excellence and expertise, its leading-edge electronic medical records system and its legacy of strong philanthropic support from grateful neurological patients and the community. Dr. Maraganore is launching 11 longitudinal research studies of neurological disorders, to include 1,000 patients each, with the theme of DNA predictions to improve neurological health and to guide the development of molecular prognostics and therapeutics.

Surgical Director, NorthShore Neurological Institute
Chairman, Department of Neurosurgery


Julian E. Bailes, MD, is a nationally recognized leader in neurosurgery, with special emphasis on brain tumors and the impact of brain injury on brain function.  Dr. Bailes and the NorthShore Neurological Institute team are among the first in the country to use emerging technology to treat brain tumors, including Visualase MRI Laser-Guided Therapy. Dr. Bailes is also one of the first neurosurgeons in the Chicago area to use the minimally-invasive NICO BrainPath as part of the Six Pillars approach, offering promising outcomes for patients with otherwise inoperable brain tumors.

Dr. Bailes joined NorthShore University HealthSystem (NorthShore) in 2011 as Chairman of the Department of Neurosurgery and Co-Director of the NorthShore Neurological Institute. As one of Chicago’s most experienced brain tumor surgeons, Dr. Bailes is conducting leading-edge clinical trials, including exploring the effectiveness of using fluorescent dye in the resection of tumors.   

Dr. Bailes was a founding member and director of the Brain Injury Research Institute, which focuses on the study of traumatic brain injuries and their prevention.  His research has been instrumental in the understanding of the clinical evidence of chronic traumatic encephalopathy (CTE), a progressive degenerative disease found in individuals who have been subjected to multiple concussions and other forms of head injury.

Previously, Dr. Bailes served for 11 years as Professor and Chairman of the Department of Neurosurgery at West Virginia University School of Medicine where he specialized in the diagnosis and surgical treatment of cerebrovascular disease, stroke and traumatic brain injury.  He was the primary treating physician of Randal McCloy Jr., the only survivor among 13 miners trapped in the 2006 Sago Mine explosion in West Virginia—the longest period of time any survivor has been trapped underground in the United States.

As a national authority in neurosurgery, Dr. Bailes served on the NASA Crew Protection Work Group for the Orion Mars-Lunar Mission. Since 1994, he has been a neurological consultant to the NFL Players’ Association (NFLPA), which has supported research on the effects of head injuries on retired professional athletes. He is the Medical Director of the Center for Study of Retired Athletes based at the University of North Carolina, Chapel Hill; Medical Director of Pop Warner Football; and an adviser to the NCAA.   

Dr. Bailes has over 170 scientific peer-reviewed publications or book chapters concerning various aspects of neurological surgery and brain injury, including five books on neurological disease. Additionally, he performs editorial duties for a number of medical journals. Dr. Bailes has been honored as one of the nation’s best surgeons for 10 consecutive years in US News & World Report’s “America’s Best Doctors” and “America’s Top Surgeons.” He has had numerous appearances on national television programs, including Dr. Oz, Good Morning America and NBC Nightly News, and has most recently been recognized as a 2014 “Chicago Top Neurosurgeon” by Chicago Magazine.

The research done by Dr. Bailes and neuropathologist Dr. Bennet Omalu as it relates to the discovery of chronic traumatic encephalopathy (CTE) in football players was featured in the movie Concussion. The movie is based on an article, “Game Brain,” that appeared in GQ as well as the book and documentary, “League of Denial.” 

Chief, Division of Physical Medicine and Rehabilitation


Joseph T. Alleva, MD, MBA, has spent his entire career at NorthShore University HealthSystem (NorthShore) since completing his specialty training in 1994 at the prestigious Rehabilitation Institute of Chicago (RIC). As Chief of the Division of Physical Medicine and Rehabilitation (PM&R) and as a leader of the NorthShore Neurological Institute, he directs a team of physiatrists and therapists (physical, occupational, speech-language) experienced in treating patients with brain and spine disorders. His expertise in the field most recently landed him on the “America’s Best Doctors” list compiled by US News and World Report, and for more than a decade, he has consistently been lauded in Castle Connolly Guide’s How to Find the Best Doctors in Chicago. In 2011, Chicago magazine featured Dr. Alleva on its “Best Sports Medicine Doctors” list.

Dr. Alleva holds an MD degree from the Chicago Medical School and completed an internship in internal medicine and neurology at Northwestern University Medical School. After the RIC, where he served as chief resident, he went on to fellowship training in spine and sports medicine at the University of Buffalo in New York. While on the East Coast, Dr. Alleva began working with athletes at the collegiate and professional levels. He served as team physician for the Buffalo Blizzard Professional Soccer organization and for the Daemen College Basketball team. Closer to home, Dr. Alleva was team physician for the Niles North High School athletic department.

Dr. Alleva is board-certified in PM&R as well as electromyography. He has numerous publications to his credit on non-surgical spine care and pain management.