Course Directors:

Jamie S. Ullman, MD, FACS*

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Jamie S. Ullman, MD, FACS, joined Northwell Health in 2013 as director of neurotrauma at the Institute for Neurology and Neurosurgery at North Shore University Hospital. She brings 25 years of specialized expertise in the surgical management of head and spinal cord injuries, as well as acute neurological conditions such as stroke, cerebral hemorrhage, hydrocephalus and brain tumors.

A founding member of the Northwell Health Concussion Program, Dr. Ullman leads a team of experts in traumatic brain injury. She also works closely with the neurocritical care team in the Neurosurgery Intensive Care Unit at North Shore University Hospital to deliver comprehensive neurological services to the community.

Fully committed to being accessible for her patients, Dr. Ullman is always there to answer questions and address any concerns with kindness and compassion. She takes the time to go over every aspect of care, whether it s reviewing diagnostic films or explaining the thorough details of a procedure.

Research is also important to Dr. Ullman. She is actively involved in various neurosurgical clinical trials and studies including intracranial pressure monitoring and minimally invasive removal of blood clots in strokes. Her work has been highlighted in more than 60 medical publications.

A recognized leader in her field, Dr. Ullman has received numerous awards from national organizations, including the Distinguished Service Award from the Congress of Neurological Surgeons. She was also nominated for Northwell s President s Award, recognized for her leadership in elevating the neurotrauma program at North Shore University Hospital, the first trauma center in downstate New York to receive level I verification from the American College of Surgeons.

Dr. Ullman received her medical training from Robert Wood Johnson Medical School in New Jersey. She completed a residency in neurosurgery and fellowship in neurosurgery critical care at Mount Sinai School of Medicine, and an additional fellowship in neurotrauma at the Shock Trauma Center at the University of Maryland School of Medicine.

After completing her training, Dr. Ullman continued to pursue her passion for education. She has held faculty and leadership roles throughout her career, and currently serves as professor of neurosurgery at the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell. As a core faculty member of Northwell s neurosurgery residency program, she is committed to training the future leaders of brain surgery.

Dr. Ullman currently serves on the New York state trauma and advisory committees, and was the first woman to serve as an officer and vice president of the Congress of Neurological Surgeons. She also previously served as chair of the American Association of Neurological Surgeons and the Congress of Neurological Surgeons Section on Neurotrauma and Critical Care. Dr. Ullman has been recognized as one of Castle Connolly s Top Doctors .

Zachary L. Hickman, MD, FAANS*

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Zachary L. Hickman, MD, is a board-certified neurosurgeon and Assistant Professor of Neurosurgery in the Department of Neurosurgery at the Mount Sinai Health System and Director of the Neurosurgery Department at Elmhurst Hospital Center in Queens, New York.

Dr. Hickman completed a post-graduate fellowship in neurotrauma and neurocritical care at Jackson Memorial Hospital and Ryder Trauma Center at the University of Miami Medical Center, under the directorship of M. Ross Bullock, MD, PhD. Dr. Hickman obtained his MD at Columbia University College of Physicians & Surgeons in New York City and completed his neurosurgery residency at NewYork-Presbyterian/Columbia University Medical Center.

Dr. Hickman’s clinical and research interests include traumatic brain and spine injury, neurosurgical emergencies and neurocritical care, intracranial multimodality monitoring, patient-oriented outcomes research, international neurosurgery, and quality improvement.

Dr. Hickman has been published in a variety of scholarly peer-reviewed journals including the Journal of NeurosurgeryNeurosurgeryNeurocritical CareJournal of Neurology Neurosurgery and PsychiatryJournal of Cerebral Blood Flow and Metabolism, and Stroke.



Ernest Barthelemy, MD*

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Andras Buki

Andras Buki, MD

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Dr. Buki is a Professor of Neurosurgery at Örebro University, Sweden with focus on clinical activity and translational research in neurotrauma. He has utmost interest in the field of diffuse brain injury, biomarkers and neuromonitoring. He served as president of the International Neurotrauma Society between 2014 and 2016 and former professor and chair at the Department of Neurosurgery, Pecs University, Hungary. Honored with the Aesculap Research Prize (2000) and European Lecturer Award (2022) of the European Association of Neurosurgical Societies.

Odette Harris, MD, MPH

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Dr. Harris graduated from Dartmouth College and received her MD degree from Stanford University School of Medicine. She received numerous academic and research awards at both institutions. She did her internship and residency at Stanford University Medical Center Stanford, California. She also earned a Master of Public Health, Epidemiology from the University of California, Berkeley.

Upon completing her neurosurgical residency, Dr. Harris was awarded the William VanWagenen Fellowship from the American Association of Neurological Surgeons. She completed her research related to this fellowship at the University of the West Indies in Kingston, Jamaica where she also serves as Visiting Consultant in Neurosurgery.

Dr. Harris has authored several scientific articles and books, is a member of several Editorial Boards and National Committees including as the Associate Editor for Neurosurgery and as an appointed Member, National Football League (NFL) Head, Neck and Spine Committee. She also serves on several Boards including an appointed Member of the Defense Health Board’s (DHB) Trauma and Injury Subcommittee and Board Chair, Palo Alto Veterans Institute for Research (PAVIR).

She has won numerous academic, research and humanitarian awards including the Congress of Neurological Surgeons Clinical Fellowship Award, the American Association of Neurological Surgeons Spinal Cord/Spinal Column Injury Award and the Western Neurosurgical Society Resident Award. Her research efforts have also been recognized by the government of Jamaica, where she was awarded the National Road Safety Council Award for outstanding contribution in traumatic brain injury.

She was recognized in 2019 by Forbes and Ebony Magazine Power 100 List Award as one of 100 most influential African Americans and received the National Medical Fellowships (NMF) Award for Excellence in Academic Medicine. In 2021 she received the Stanford RISE Award. In 2022 Dr Harris was recognized by Stanford University as one of Stanford’s 13 women’s history makers!

Sarah Khan, DO

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Allan Levi

Allan Levi, MD, PhD, FAANS

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Allan D. Levi,  is a tenured Professor and Chairman in the Department of Neurological Surgery at the University of Miami Miller School of Medicine; Professor, Departments of Orthopedics and Rehabilitation Medicine; Chief of Neurosurgery, Jackson Memorial Hospital; and Robert M. Buck Distinguished Chair in Neurological Surgery. Dr. Levi graduated from the University of Ottawa Medical School.
He completed his residency at the University of Toronto, as well as a spine fellowship at the Barrow Neurological Institute in Phoenix, AZ. In addition, he received a PhD in neurosciences at the University of Miami Miller School of Medicine. Dr. Levi, holding both a MD and PhD, leverages both his time spent in the laboratory as a researcher obtaining his Ph.D. and his extensive experience as a spine and peripheral nerve neurosurgeon to create and direct his research staff to conduct studies that apply to humans in real world situations. Dr. Levi's research interests include cellular transplantation strategies after spinal cord and peripheral nerve injury. He has focused on developing cellular transplantation strategies to repair injuries within both the human central and peripheral nervous system. Dr. Levi has focused much of his previous research efforts in furthering our understanding of the biology of human Schwann cells which have been isolated using cell culture techniques. The results of these studies have demonstrated that human Schwann cells have the capacity to form myelin after transplantation within immune deficient rodent models and that their numbers can be significantly increased with addition of growth factors. One of Dr. Levi's current clinical research trials involving the clinical development and characterization of the use of autologous human Schwann cells for peripheral nerve injuries with a lengthy gap to promote peripheral nerve regeneration as well as a multi-center trial in the use of hypothermia after acute SCI. Dr. Levi has been the Course Director of the AANS Goodman Oral Board Preparation Course since 2007. He is also a member of the Senior Society and the American Academy of Neurosurgery.

Andrew Maas, MD

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Andrew I.R. Maas is Emeritus Professor of Neurosurgery at the Antwerp University Hospital and University of Antwerp. He holds positions as past Chairman of the Neurotraumatology Committee of the World Federation of Neurosurgical Societies (WFNS), the International Neurotrauma Society, and is Co-Chairman of the European Brain Injury Consortium and Advisory Board member to Wings for Life. He has a vast experience as a general neurosurgeon and has specific research interests in neurotrauma and neuro-intensive care.

Dr Maas was the Principal Investigator of the IMPACT study group (International Mission on Prognosis and Clinical Trial design in TBI), that was awarded an NIH grant (2003-2011) and resulted in over 55 publications and recommendations for improved trial design. Together with Prof David Menon, University of Cambridge, he coordinated the large scale collaborative project CENTER-TBI: Collaborative European NeuroTrauma Effectiveness Research in TBI (, supported by the FP7 program of the European Union (Grant no: 602150; duration:2013-2021).

Honors and scientific awards:

· Lifetime Achievement Award International Brain Injury Association (2016)

· Honorary Doctorate Burdenko Institute Moscow (2013-ongoing)

· Collaborative European NeuroTrauma Effectiveness Research in TBI (CENTER TBI) – grant from the European Commission 7th Framework Programme ( Coordinator Grant no: 602150; duration:2013-2021)

· Individualized Targeted Management in Neurocritical care – Grant of the Flemish Institute for Science and Technology (2009-2011)

· Clinical Trial Design and Analysis in TBI – NIH-R01 grant (PI Grant no: 042691; 2003-2011)


Laura Ngwenya, MD

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Dr. Laura Ngwenya, MD, PhD is the Director of the Neurotrauma Center at the University of Cincinnati Gardner Neuroscience Institute and an Associate Professor in the Departments of Neurosurgery and Neurology & Rehabilitation Medicine. Dr. Ngwenya is a neurosurgeon scientist with a clinical and research focus on traumatic
brain injury (TBI). Dr. Ngwenya participates in national and international initiatives to improve TBI patient care such as Transforming Research and Clinical Knowledge in TBI (TRACK-TBI), Co-Operative Studies on Brain Injury Depolarizations (COSBID), and the International Initiative for TBI Research (InTBIR-2). Dr. Ngwenya is involved in clinical International Initiative for TBI Research (InTBIR-2). Dr. Ngwenya is involved in clinical International Initiative for TBI Research (InTBIR-2). Dr. Ngwenya is involved in clinical
trials research, comparative effectiveness research, and basic science research. Her NIH-funded neurotrauma laboratory explores cellular and molecular mechanisms underlying poor recovery after TBI, with a focus on spreading depolarizations. Dr. Ngwenya’s clinical and research efforts focus on identifying novel therapeutic targets, improving patient management strategies, and improving the quality of life for patients
with traumatic brain injury.

Hilary Ramroop

Hillary Ramroop, DO

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Roxanne D. Todor, MD*

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Dr Roxanne Todor, MD, FAANS, FACS is the Director of Neurosurgery at Jacobi Medical Center. Dr. Todor completed a fellowship in cerebrovascular surgery at the Cleveland Clinic Foundation after completing Neurosurgical Residency at New York Medical College. She obtained her MD at SUNY Downstate Medical Center where she also completed 2 years of general surgical residency.

Dr Todor’s clinical and research interests focus on neurotrauma, especially moderate and severe traumatic brain injury in adults and children. She is part of a multidisciplinary team that manages craniofacial trauma and activity participates in quality improvement. She actively participates in neurotrauma education and has presented at local and national conferences.



Kristen Dams-O’Connor,PhD*

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Kristen Dams-O’Connor, Ph.D. is Jack Nash Professor and Vice Chair of Research in the Department of Rehabilitation and Human Performance at the Icahn School of Medicine at Mount Sinai (ISMMS) in New York, NY. She serves as Director of the Brain Injury Research Center (BIRC) of Mount Sinai and is a Professor of Neurology at ISMMS. Her multidisciplinary research program aims to identify mechanisms, risk, and protective factors to improve long-term outcomes in individuals with traumatic brain injury (TBI) and repetitive head trauma sustained through sports participation, military service, and intimate partner violence. She leads the Late Effects of TBI (LETBI) project, a longitudinal prospective TBI brain donor program that aims to characterize the clinical phenotype and postmortem pathological signatures of post-traumatic neurodegeneration and its associations with Alzheimer’s disease (AD), AD-related dementias (ADRDs), traumatic encephalopathy syndrome (TES), and underlying neuropathological processes. Her team uses modern psychometric and statistical techniques to measure individual differences in trajectories of change over time among survivors of TBI. One goal of this work is to improve diagnosis of secondary post-traumatic conditions during life so they can be treated.

She is Project Director of the New York Traumatic Brain Injury Model System of care, one of 16 centers of excellence for TBI research and clinical care in the United States. Her research is supported by federal grants from the National Institutes of Health, National Institute for Disability Independent Living and Rehabilitation Research, Department of Defense, Centers for Disease Control, and Patient Reported Outcomes Research Institute.

Amanda Lin Photo

Amanda Lin, PharmD, BCPS, BCCP*

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Dr. Lin is a clinical pharmacy specialist practicing in the Neurosurgical Critical Care Unit (NSCU). She received her PharmD from the Arnold & Marie Schwartz College of Pharmacy and Health Sciences at LIU. She completed an ASHP-accredited PGY-1 pharmacy residency at Kingsbrook Jewish Medical Center, as well as a PGY-2 internal medicine residency at University Pittsburgh Medical Center, Presbyterian Shadyside. Dr. Lin is an active member within Long Island Society of Health-System Pharmacists (LISHP).

Dr. Lin currently maintains a clinical pharmacy practice in the Neurosurgical Critical Care Unit (NSCU) and Neurology/Stroke Unit at North Shore University Hospital.

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Konstantinos Margetis, MD, PhD*

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Dr. Margetis is a uniquely qualified neurosurgeon with dual postgraduate fellowships in Complex Spine Surgery from The Cleveland Clinic in Ohio and in Pediatric Neurosurgery from Weill Cornell Medical College in New York. Dr. Margetis obtained his medical degree at the Aristotle University of Thessaloniki Medical School in Greece. At the University of Athens, also in Greece, he earned his PhD for research related to the effects of Intrathecal Baclofen Therapy on the Central Nervous System and completed his Neurosurgery residency. He is a Fellow of the American College of Surgeons and the Royal College of Surgeons of England. He holds a Masters Certificate in Health Care Leadership from Cornell University. Dr. Margetis has been published in a variety of scholarly journals including the Journal of NeurosurgeryWorld NeurosurgeryNeuromodulation, and the Journal of Clinical Psychopharmacology.

Dr. Margetis practices general neurosurgery and complex spine surgery at The Mount Sinai Hospital and Mount Sinai Morningside in Manhattan, New York.

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