We are led by remarkable physicians and scientists. Learn about our leaders and their programs.



John Kissel, MD

Chair, Department of Neurology; Professor of Neurology, Pediatrics and Neuroscience; Director, Muscular Dystrophy Association and Spinal Muscular Atrophy Clinic

I specialize in peripheral nerve, muscle and anterior horn cell disorders. My interests include facioscapulohumeral muscular dystrophy, various muscular dystrophies and inflammatory myopathies. 

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Division Directors


Miriam Freimer, MD

Director, EMG Laboratory; Co-director, Myasthenia Gravis Clinic

I am an associate professor in the Department of Neurology. My research is focused on neuromuscular diseases including myasthenia gravis (MG), chronic inflammatory demyelinating neuropathy (CIDP), dermatomyositis, amyotrophic lateral sclerosis (ALS), iodiopathic painful neuropathies and hereditary neuropathies.


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Sandra Kostyk, MD, PhD

Director, Division of Movement Disorders

I am a professor in the Departments of Neuroscience and Neurology. My clinical interests are movement disorders and spinal cord injury. My research interests include neurodegenerative disease processes — neuroregeneration, neurorecovery, neuroadaptation and neuroprotection.


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Michael Racke, MD

Director, Division of Multiple Sclerosis

I am a professor in the Department of Neurology. My clinical and research interests include neuroimmunology and multiple sclerosis, specifically studying disease pathogenesis and developing novel therapies.

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Douglas Scharre, MD

Director, Division of Cognitive and Memory Disorders

I am a professor of the Departments of clinical neurology and psychiatry. I specialize in cognitive assessment, dementia, Alzheimer’s disease, mild cognitive impairment, dementia with Lewy bodies, frontotemporal dementia and behavioral disturbances in dementia.

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Michel Torbey, MD, MPH, FNCS, FCCM, FAHA, FANA

Director, Division of Cerebrovascular Diseases & Neurocritical Care

As medical director of the Neurovascular Stroke Center, I specialize in stroke, acute neurological emergencies, intracerebral hemorrhage, and TBI.


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Our Doctors

Our Researchers

Our leaders


Punit Agrawal, DO

Assistant Professor – Clinical, Neurology

Dr. Agrawal completed his residency in neurology at Ohio State, as well as a fellowship in movement disorders. His research interests include investigation of deep brain stimulation for movement disorders and therapies for neurological diseases, including Parkinson's disease and Huntington's disease, movement disorders and neuromodulation.

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Allison Daley, MS, CGC

Research Specialist, Research Genetic Counselor

Allison Daley's research interests include genetic counseling for Huntington’s disease and other movement disorders, and phenotype/genotype correlations in movement disorders.

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Miriam Freimer, MD

Associate Professor of Neurology

Dr. Freimer has been on the staff at The Ohio State University since 1992 in the Division of Neuromuscular Diseases and has been the director of the Electromyography (EMG) laboratory since 1994. She is the co-director of the Myasthenia Gravis clinic.

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David Arnold, MD

Assistant Professor of Neurology

Dr. Arnold's research interests include the full spectrum of neuromuscular disorders, functional and rehabilitation aspects of neuromuscular disorders, and less commonly used neurophysiological techniques such as single fiber electromyography (EMG) and quantitative EMG.

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Pediatric Neurologists

Nationwide Children’s Hospital is the seat for The Ohio State University’s Division of Child Neurology. We offer comprehensive, family-centered care for children with neurological illness, and our faculty members are at the forefront of research into neurological diseases such as muscular dystrophy, epilepsy, headache and stroke, to name a few.

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Advanced Practice Providers


Christine Bogda, CNP

Nurse Practitioner

Family nurse practitioner Christine Bogda, CNP, specializes in MS diagnosis, management and treatment. She has both a master’s and bachelor’s degree in nursing. She also has experience caring for critically ill neurology and neurosurgical patients.


Mark Constable, MSN, RN, AGACNP-BC

Certified Nurse Practitioner

As a CNP, I focus on diagnosing and treating patients with neurologic diseases requiring neurological surgery. I provide leadership on a multidisciplinary team to help drive quality outcomes and continuity of care. I'm involved in every aspect of care including inpatient and outpatient, pre- and post-operative follow-up and consultation. I completed my BSN at the University of Akron and my MS in Nursing at Duke University.


Marissa DeJesus, MS, RN, FNP-BC

Certified Nurse Practitioner

I received both my BSN and MS in Community Health Nursing from Ohio State. I later completed my Family Nurse Practitioner certification in 2005 from Ohio State. I joined the Department of Neurological Surgery in 2008. My clinical interests include recovery and transitions in care of stroke and neurosurgical patients. I currently facilitate the Aneurysm and AVM support group. I am on the executive board of the Philippine Nurses Association of Central Ohio.


Nicole Elking, MS, RN, AGACNP-BC

Neurocritical Care Unit

In 2008, I began working at The Ohio State University Wexner Medical center as a staff nurse in the Neuroscience/Trauma Progressive Care Unit. In 2013, I transitioned to the Neurocritical Care Unit while attending The Ohio State University for my Masters in Science in Nursing. In 2015, I joined the Neurocritical Care team as a board certified Adult-Gerontology Acute Care Nurse Practitioner. My interests include neuroscience and management of the critically ill.


Jennifer Fisher

Neurocritical Care Nurse Practitioner

I completed my BSN, magna cum laude with research distinction in nursing, from Ohio State. I went on to receive my master's in Adult Gerontology Acute Care Nurse Practitioner at Ohio State. In 2009, I joined The OSU Wexner Medical Center as a registered nurse in the medical intensive care unit. After working in the University Hospital operating room, I joined the Neurocritical Care Unit, where I work as a certified nurse practitioner. I am a member of the Neurocritical Care Society and certified in the NIH Stroke Scale.


Noah Grose, RN, CNP, ACNP

Division of Cerebrovascular Diseases & Neurocritical Care

I received my BSN at Alderson-Broaddus College in Philippi, West Virginia. Following graduation, I worked as an intensive care nurse at the University of Kentucky Medical Center and received my Master of Science degree in Nursing and Acute Care Nursing Practice. I have been a member of the Stroke and Neurocritical Care team since 2011. My clinical interests include acute management of hemorrhagic strokes, hydrocephalus, acute hypertensive management and neurocritical care.


Renee Kovesci, MS, CNP

Nurse Practitioner

I graduated from Ohio State in 2007 with a Bachelor of Science in Nursing. I have held nursing positions at Nationwide Children’s Hospital and Mount Carmel St. Ann’s Hospital. I graduated from Ohio State in 2009 with a Master of Science, and became certified as a Family Nurse Practitioner. I am board certified by the American Academy of Nurse Practitioners. My clinical interests include the assessment, diagnosis and treatment of memory disorders, such as Alzheimer's disease, mild cognitive impairment, and dementia.


Thomas Lawson, MS, RN, ACNP-BC

Neurocritical Care Unit

I completed my BS in Nursing at Cedarville University in Cedarville, OH and my MS degree: Acute Care Nurse Practitioner at Wright State University in Dayton. I joined OSU Wexner Medical Center in 2006 and have been a NP in the Neurocritical Care Unit since 2011. My clinical interests include the critical care management of patients with neurologic diseases. I conduct research to improve the quality and safety in neurocritical care, currently studying emergency vascular access.


Lucretia Long, MS, RN, CNP

Clinical Assistant Professor of Neurology; Epilepsy Nurse Practitioner

I received my BSN, MS and Nurse Practitioner Certification from Ohio State University. I have been on the OSU faculty since 1989. My areas of emphasis include epilepsy patient education and women's issues. I am well published in peer-reviewed nursing and medical journals, and I serve as a reviewer for Epilepsy and Behavior. I am a member of the local Epilepsy Foundation and the APP workgroup for the American Academy of Neurology. I am also national trainer for VNS (vagus nerve stimulation) therapy.


James McAuley, RPh, PhD

Professor of Pharmacy Practice and Neurology

In the Comprehensive Epilepsy Program, I have the opportunity to interact with patients and healthcare providers, teach and collaborate on clinical research projects. I received my PhD in Clinical Pharmaceutical Sciences from the University of Pittsburgh. I am the associate dean for Academic Affairs in the College of Pharmacy. My clinical interests include epilepsy, pharmacy, and patient outcomes. I also work closely with the Maternal-Fetal Medicine program, providing collaborative care to pregnant women with epilepsy.

Jerold Reynolds, PhD, RCP, RRT

Respiratory Therapist; Associate Professor of Neurology

I am a licensed respiratory care practitioner and a nationally registered respiratory therapist. My research and practice focus on the complications of neuromuscular disease and how they affect respiration. I began working at Ohio State in 1981 and earned degrees in Respiratory Therapy, Clinical Psychology, Allied Medicine and Allied Health Science. Teaching, clinical practice and clinical research are vital parts of my role in the Department of Neurology, where I have been a member since 1999.


Jennifer Roggenbuck, MS, CGC

Genetic Counselor; Assistant Professor in the Division of Genetics (Department of Internal Medicine and Department of Neurology)

I specialize in the genetic evaluation of neuromuscular disorders such as muscular dystrophies, hereditary neuropathies and motor neuron diseases. I work to bring genetic testing technology to patient care for noninvasive genetic diagnosis, risk assessment and genetic counseling. My research interests include the genetic basis and genetic counseling for amyotrophic lateral sclerosis (ALS).

Jessica Truelove, MS, RN, CNP

Nurse Practitioner


Susan Yeager, MS, RN, CCRN

Clinical Instructor, Neurocritical Care Lead Nurse Practitioner

For nearly 10 years, I have worked in Neurosurgical Critical Care and Trauma as an acute care nurse practitioner before joining Neurocritical Care. I received my BSN from Capital University School of Nursing and my MS in Adult Cardiopulmonary from The OSU College of Nursing. I completed my MS degree in Acute Care Nursing Practice at Wright State University College of Nursing and Health. My clinical interests include cerebrovascular diseases, neurocritical care and traumatic brain injury.


Ye Zhou, MSN, RN, CCRN

Neurocritical Care Unit

I earned my BSN, magna cum laude, from Bob Jones University, and my master's degree in Acute Care Program from Wright State University. I am board certified in Emergency Neurological Life Support from the Neurocritical Care Society, an acute care nurse practitioner by The American Nurses Credentialing Center and certified critical care nurse by the American Association of Critical-Care Nurses. My clinical interests include cerebrovascular disease, neurocritical care and traumatic brain injury.


Cheryl Wall, RN, MS, CNP

Nurse Practitioner

I work in cooperation with all Neuromuscular attending physicians to provide opportunities to participate in research, continuity and quality care for individuals with myasthenia gravis and other neuromuscular junction defects, dermatomyositis, ALS, IBM, muscular dystrophies, myotonia, peripheral neuropathy (both acquired and inherited) and others.

Clinical Interests: ALS, muscular dystrophy, myasthenia gravis, peripheral neuropathy


Erica Wright, MSW, LISW

Social Worker

I received my Master of Social Work degree from The Ohio State University. Since 2009, I have worked in the Columbus community, and have experience with case management, psychosocial assessments, community resources, caregiver issues and knowledge of Medicare and Medicaid.

Clinical Interests: ALS, muscular dystrophy, myasthenia gravis, peripheral neuropathy


Our leaders


Julie Agriesti, CCRC

Clinical Research Coordinator


Katherine Ambrogi, RN

Clinical Research Specialist


Amy Bartlett, BA, CCRC

NeuroNEXT Clinical Research Manager, Neuromuscular Disorders Center


Anthon Brooks

Administrative Director, Comprehensive Stroke Center


Laura Buchwalder

Clinical Research Assistant, Comprehensive Stroke Center


Allison Daley, MS, CGC

Clinical Research Specialist, Center for Movement Disorders


Rebecca Davis, RN, LISW

Clinical Research Specialist, Center for Cognitive and Memory Disorders


Rebecca Duell

Clinical Research Coordinator, Comprehensive Stroke Center


Nancy Ficco, RN

Registered Nurse, Multiple Sclerosis Center


Misty Green

Clinical Research Coordinator, Multiple Sclerosis Center


Sharon Hammond-Heaton, MA, BSN, RN

Associate Director, Comprehensive Stroke Center


Jennifer Icenhour, BA

Clinical Research Manager, Center for Cognitive and Memory Disorders


Kevin McGovern

Clinical Research Assistant, Multiple Sclerosis Center


Kathleen Moore, CNP

Certified Nurse Practitioner


Muhammad Nasir

Clinical Research Coordinator, Comprehensive Stroke Center


Kelly Ortman, BA

Clinical Research Coordinator


Nirav Patel, Nirav.Patel@osumc.edu

Sr. Clinical Research Coordinator, Comprehensive Stroke Center

Carly Pouttu

Clinical Research Assistant, Comprehensive Stroke Center


Nicole Vrettos, BS

Clinical Research Coordinator, Center for Cognitive and Memory Disorders


Karen Wiles, BSN, RN, CCM

Telestroke Program Manager, Comprehensive Stroke Center


Weiping Ye

Clinical Research Coordinator, Comprehensive Stroke Center


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