© 2018 by Peak Neurophysiology Group, LLC

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Our Leadership

Michael Riley, MS, CNIM

President and Chief Executive Officer

Mike has a background in cellular, systems, and developmental neuroscience, having completed a Master's thesis utilizing in vivo electrophysiology and neuroimaging of zebrafish motor circuits with direct correlation to behavioral output. After completing a one year fellowship in Clinical Neurophysiology, he made it his personal mission to raise the bar for IONM education, training, and delivery across North America. Mike has personally monitored over 1,900 surgical procedures, with specific clinical interests in lateral spread response, cranial motor and sensory mapping, and IONM for lateral lumbar interbody fusion. He believes that a robust foundation of primary literature is essential to the advancement of the IONM industry, and is a published author of basic neuroscience and IONM-specific research in top-tier journals. Finally, Mike firmly believes that clinicians conducting neurophysiological monitoring in the operating room must be experts in both the technical and interpretive components of their practice, and he is committed to furthering this Professional Model of IONM delivery to hospitals and surgical groups throughout North America.

Sébastien Fournier, PhD, DABNM

Vice President and Chief Clinical Officer

Dr. Sébastien Fournier is a Board-Certified Attending Clinical Neurophysiologist at Peak Neurophysiology Group and the University of California, San Francisco (UCSF). He specializes in the Intraoperative Neurophysiological Monitoring of complex neurosurgical, orthopedic spine, ENT, and vascular procedures in both adult and pediatric populations. Dr. Fournier received education and training from top ranked Universities in United States and Canada, including Harvard, Yale, Laval, and McGill. He pursued his post-doctoral clinical fellowship at the University of Pittsburgh Medical Center (UPMC) under the supervision of eminent leaders in the field of IONM. After his fellowship, Dr. Fournier founded the IONM program in one of the largest Trauma and Neurological Sciences Centers in Canada: CHU de Quebec, Hopital de l'Enfant-Jesus. Dr. Fournier is an appointed Director of the American Board of Neurophysiologic Monitoring as well as a Medicolegal Expert Witness in the field of IONM, consulting for law firms and hospitals in both the US and Canada.

Lev Grinman, MD

Chief Medical Officer

Dr. Grinman received his undergraduate degree from Cornell University and his medical degree from SUNY Upstate Medical University. He then completed a Neurology residency at Long Island Jewish Medical Center – Albert Einstein College of Medicine, followed by a Sleep Medicine fellowship at the New York College of Medicine at the Sleep Disorders Institute. Dr. Grinman has previous experience leading a large clinical IONM team spanning multiple states, as Chief Medical Officer. He is excited to draw upon his expertise and experience in supporting Peak's professional model of IONM as the gold standard for quality and compliance. Board certified in Neurology and Sleep Medicine, Dr. Grinman is currently a Clinical Instructor and Attending Neurologist at Stony Brook University Hospital and Hackensack University Medical Center. He is also a successful entrepreneur, philanthropist, and father of three young children.

Elizabeth Meliski, DC

Chief Operating Officer

Dr. Meliski’s background includes direct patient care, healthcare administration, business operations and scientific research.  After earning her Doctor of Chiropractic and Physiological Therapeutics from Northwestern Health Sciences University, she co-founded a chiropractic practice in Upstate New York and was the Clinical Director for a private practice in Washington, D.C.  Having treated patients with unfavorable surgical outcomes, her experience in post-surgical rehabilitation led her to recognize the need for a higher standard of care in the field of IONM. Dr. Meliski’s commitment to improving patient care is further demonstrated by her past lobbying activities in Washington, D.C. where she was an advocate for patients’ rights.  She is excited to expand her clinical skill set by joining Peak Neurophysiology Group and looks forward to continuing her positive impacts on the healthcare community.