Dr. Argye Hillis is a professor of Neurology, with joint faculty appointments in Physical Medicine and Rehabilitation and in Cognitive Science. She is also the Sheikh Khalifa Stroke Institute Professor of Acute Stroke Diagnoses and Management. Prior to medical training and neurology residency, Dr. Hillis worked as a speech-language pathologist, and conducted clinical research focusing on understanding and treating aphasia and hemispatial neglect. She has brought these areas of experience to impact on her clinical research in neurology, which involves cognitive and neuroimaging studies of aphasia and hemispatial neglect due to acute stroke and focal dementias. She has published extensively on these topics in journals and textbooks. Dr. Hillis is Associate Editor of Stroke and has served as Associate editor of Brain, Annals of Neurology, Aphasiology, American Journal of Speech-Language Pathology, Neurocase, Cognitive Neuropsychology, and Language and Cognitive Processes and served as co-Editor and Chief of Behavioral Neurology. Dr. Hillis serves as the Executive Vice Chair of the Department of Neurology and the Director of the Cerebrovascular Division of Neurology at Johns Hopkins. Dr. Hillis is rated as an Elite provider by MediFind in the treatment of Stroke. Her top areas of expertise are Primary Progressive Aphasia, Stroke, Frontotemporal Dementia, Thrombectomy, and Gastrostomy.

Dr. Elisabeth Marsh's clinical interest is in cerebrovascular neurology, and her clinical research focuses on stroke outcomes and recovery. Her clinical responsibilities include attending on the inpatient Stroke Service at the Johns Hopkins Hospital and inpatient Neurology Service at the Johns Hopkins Bayview Medical Center. In 2014, Dr. Marsh was named the Medical Director of the Comprehensive Stroke Program at the Johns Hopkins Bayview Medical Center. She implemented the Bayview Stroke Intervention Clinic (BaSIC), a multi-disciplinary follow-up clinic designed to promote patient follow-up, reduce hospital readmission rates, and enhance post-stroke recovery. Her current focus is on the under-reported neurologic deficits (particularly with respect to depression, fatigue, and cognition) that significantly impair long-term functional outcome and patient satisfaction, despite scores on metrics such as the NIH stroke scale that indicate a “good recovery”. She leads a team of vascular neurologists, emergency medicine physicians, neurosurgeons, interventional neuroradiologists, neurointensivists, and rehabilitation specialists, who work together to provide the highest level of care to all stroke patients, resulting in better functional outcomes and improved quality of life. She is also interested in the treatment of acute stroke and intracranial hemorrhage. Her past work has included evaluation of the predictors of hemorrhagic transformation following ischemic stroke. Using multivariable regression, she created a model that predicts rate of hemorrhagic transformation in patients with acute stroke on anticoagulation, the Hemorrhage Risk Stratification (HeRS) score. The tool is available for free through Apple by searching 'Johns Hopkins HeRS score' in the App Store. Dr. Marsh is rated as an Elite provider by MediFind in the treatment of Stroke. Her top areas of expertise are Stroke, Apoplexy, Transient Ischemic Attack (TIA), Thrombectomy, and Gastrostomy.

Dr. Rafael Llinas serves as the Director of Neurology at the Johns Hopkins Bayview Medical Center. His clinical interests include acute stroke treatments, neurovascular imaging and migraine as related to cerebrovascular disease. He also serves as the associate director of the neurology residency program. He was instrumental in establishing the Johns Hopkins Bayview Medical Center Stroke Center. In 2005, in recognition of the Stroke Centers organizational efforts in stroke care, the institution was granted certification as a Primary Stroke Center by the Joint Commission on Accreditation of Healthcare Organizations. Dr. Llinas primary areas of research interests include diffusion-perfusion imaging of stroke, intravenous and intra-arterial thrombolysis for stroke, education of physicians and nurses in stroke identification and stroke care, stroke units and stroke centers. Dr. Rafael Llinas received his medical degree from the New York University School of Medicine. He completed a medical internship at the Boston City Hospital and was a neurology resident in the Harvard-Longwood neurology training program. Following his residency, he was a stroke and cerebrovascular disease fellow for two years at Beth Israel Hospital, Harvard University. Dr. Llinas is rated as an Elite provider by MediFind in the treatment of Stroke. His top areas of expertise are Stroke, Cerebral Amyloid Angiopathy, Siderosis, Thrombectomy, and Gastrostomy.

A leading expert on brain injury, Dr. Daniel F. Hanley has been a professor of neurology, neurosurgery, and anesthesiology/critical care medicine at the Johns Hopkins University School of Medicine since 1996 and was named the Jeffrey and Harriet Legum Chair of Acute Care Neurology. Dr. Hanley founded and directed the Johns Hopkins Neurocritical Care Unit, one of the first critical care units dedicated solely to neurosurgical and neurological patients. Subsequently, in 1999, he founded and continues to direct the BIOS Clinical Trials Coordinating Center (BIOS CTCC), formerly known as the Division of Brain Injury Outcomes. Under Dr. Hanley’s leadership, BIOS CTCC, an academic contract research organization based at Johns Hopkins, has organized and completed more than 20 large clinical trials. He has been awarded over 70 clinical and basic research grants, predominantly from the National Institutes of Health and the FDA Orphan Products Grants Program. Dr. Hanley’s 40-year career in medicine has focused on clinical trial design, the organization and interpretation of drug and device trials, the development of strategic research plans, and FDA regulatory compliance. He has led international, NIH-sponsored trials including the MISTIE III and CLEAR III trials investigating minimally invasive neurosurgical techniques to treat hemorrhagic stroke. As principal investigator for the National Center for Advancing Translational Sciences (NCATS) Johns Hopkins Trial Innovation Center, Dr. Hanley leads collaborative efforts to advance education and therapeutics through innovative CTSA clinical trials. Currently, Dr. Hanley is the PI or multi-PI for several ongoing trials. These include a multisite phase 2/3 randomized controlled dementia prevention trial (MAP), a large multicenter clinical trial involving automated monitoring of atrial fibrillation (REACT AF), and a first-in-patient phase 2a biomarker and edema attenuation in intracerebral hemorrhage trial (BEACH). Dr. Hanley has published over 400 peer-reviewed articles and book chapters, received the Humboldt Research Prize for accomplishments in brain injury research, and mentored nearly 100 researchers. His trainees, which include a large number of trialists, have led 25 brain intensive care units, and over 40 have been named full professors, program leaders, or department chairs. He has served on public boards including the American Academy of Neurology, National Stroke Association, and NIH National Institute of Nursing Research. Dr. Hanley is rated as an Elite provider by MediFind in the treatment of Stroke. His top areas of expertise are Stroke, Hydrocephalus, Vertigo, Severe Acute Respiratory Syndrome (SARS), and Thrombectomy.

Steven Kittner is a Neurologist in Baltimore, Maryland. Dr. Kittner is rated as an Elite provider by MediFind in the treatment of Stroke. His top areas of expertise are Stroke, Migraine with Brainstem Aura, Familial Hemiplegic Migraine, Gastrostomy, and Stent Placement.

Seemant Chaturvedi is a Neurologist in Baltimore, Maryland. Dr. Chaturvedi is rated as an Elite provider by MediFind in the treatment of Stroke. His top areas of expertise are Stroke, Transient Ischemic Attack (TIA), Obstructive Sleep Apnea, Thrombectomy, and Stent Placement. Dr. Chaturvedi is currently accepting new patients.

Prachi Mehndiratta is a Neurologist in Baltimore, Maryland. Dr. Mehndiratta is rated as an Elite provider by MediFind in the treatment of Stroke. Her top areas of expertise are Stroke, Cerebral Amyloid Angiopathy, Kuru, Transmyocardial Revascularization, and Stent Placement. Dr. Mehndiratta is currently accepting new patients.

Rebecca Gottesman is a Neurologist in Baltimore, Maryland. Dr. Gottesman is rated as an Elite provider by MediFind in the treatment of Stroke. Her top areas of expertise are Stroke, Dementia, Vascular Dementia, Gastrostomy, and Thrombectomy.

Dr. Victor Urrutia serves as the medical director of the stroke service at The Johns Hopkins Hospital and director of the Sheikh Khalifa Stroke Institute. He focuses on the clinical aspects of cerebrovascular disease (stroke), specifically acute stroke therapy and prevention. Dr. Urrutia currently sees patients at the Stroke Prevention Clinic, located in the Johns Hopkins Outpatient Center in Baltimore on Wednesdays, and cares for patients in The Johns Hopkins Hospital's Brain Rescue Unit. Dr. Victor Urrutia received his medical degree from the University of Panama School of Medicine. He completed his neurology training at MCP Hahnemann University in Philadelphia, now Drexel University College of Medicine. After his residency training, he completed fellowship training in neurocritical care and acute stroke at Drexel University College of Medicine and became a faculty member in the neurocritical care and acute stroke division. He then returned to Panama for two years where he was the first to treat patients with IV thrombolytic therapy for acute stroke. Dr. Urrutia is rated as a Distinguished provider by MediFind in the treatment of Stroke. His top areas of expertise are Stroke, Transient Ischemic Attack (TIA), Vertigo, Thrombectomy, and Gastrostomy.

Neurologist Michelle C. Johansen specializes in prevention and treatment of stroke. She is the inaugural Guy McKhann Associate Professor of Neurology — the title was established in honor of the founder of the Johns Hopkins Department of Neurology. Dr. Johansen’s research and clinical interests focus on stroke etiology and vascular contributions to cognitive decline. She studies the intersection between the brain and the heart, specifically how changes in the heart’s structure and function point toward the cause of stroke and impact brain health, including cognition. She received the American Stroke Association’s Vascular Cognitive Impairment Award for her work showing that myocardial infarction is associated with acute and progressive decline in cognition, the American Academy of Neurology’s A.B. Baker Teacher Recognition Award and the Johns Hopkins Department of Neurology’s Clinical Faculty Brain Award for excellence in teaching. She has received multiple grants to fund her research from the National Institute of Neurological Disorders and Stroke, the National Institute on Aging and the American Heart Association. Dr. Johansen’s work has been published in many high-ranking medical journals such as The Journal of the American Medical Association, and she has been interviewed as an expert for news outlets such as CNN and Medical News Today, as well as for webinars and podcasts. She is a member of the American Neurological Association and chair of its Education Innovation Committee, and she is a fellow of the American Heart Association. She received her medical degree from the Medical College of Virginia, where she was inducted into the Alpha Omega Alpha Honor Society, and she earned a postdoctoral degree in clinical investigation from the Johns Hopkins Bloomberg School of Public Health. Dr. Johansen completed a medicine internship and neurology residency at the University of Virginia, followed by a clinical fellowship in cerebrovascular neurology at Johns Hopkins. She joined the Johns Hopkins Department of Neurology faculty in 2017. The Johansen Lab: johansenlab.org Videos Johns Hopkins Medicine A Woman's Journey Executive Women's Briefing 2021 Neurology: Junior Faculty Spotlight. Dr. Johansen is rated as a Distinguished provider by MediFind in the treatment of Stroke. Her top areas of expertise are Stroke, Dementia, Apoplexy, Cerebral Amyloid Angiopathy, and Thrombectomy.

Dr. Sun is an expert in both pediatric neurology and cerebrovascular neurology, with a special interest in pediatric and young adult stroke. She focuses on both acute care of stroke as well as longitudinal management of an array of neurologic conditions that affect children and young adults. Dr. Sun’s research focuses broadly on pediatric and young adult stroke, with emphasis on discovering the causes, treatments, and prevention of stroke in the young. More specifically, Dr. Sun is investigating novel monitoring and stroke prevention techniques in children with moyamoya disease, which is a rare disease that places affected children and young adults at high risk of stroke. The goal of Dr. Sun's research is to improve outcomes and quality of life of individuals affected by stroke and moyamoya disease. In addition to her clinical and research interests, Dr. Sun is the associate program director of the Child Neurology residency program at Johns Hopkins. After completing medical school at the Johns Hopkins University School of Medicine, Dr. Sun completed her pediatrics and neurology residency training at Johns Hopkins, and subsequently she completed a fellowship in Vascular Neurology/Stroke. Dr. Sun is rated as a Distinguished provider by MediFind in the treatment of Stroke. Her top areas of expertise are Moyamoya Disease, Stroke, Stiff Person Syndrome, Thrombectomy, and Cerebral Artery Bypass Surgery.

David Newman-Toker, M.D., Ph.D., is an internationally recognized leader in neuro-otology, acute stroke diagnosis, and diagnostic errors research. He completed his undergraduate studies at Yale University, his medical degree at University of Pennsylvania, his residency training and neuro-ophthalmology fellowship at Harvard University, his neuro-otology fellowship at Johns Hopkins University School of Medicine, and his doctoral degree in clinical research methods at the Johns Hopkins Bloomberg School of Public Health. He has served as a full-time faculty member at the Johns Hopkins University School of Medicine since 2002. He is the David Robinson Professor of Vestibular Neurology and also holds appointments in Otolaryngology, Ophthalmology, Emergency Medicine, Acute Care Nursing, Health Sciences Informatics, Epidemiology, and Health Policy & Management at Johns Hopkins. Dr. Newman-Toker is a bedside-to-populations translational researcher, with a focus on eliminating diagnostic errors and achieving diagnostic excellence. He is a leader in the national and international movements to eliminate patient harms from diagnostic error. Dr. Newman-Toker’s clinical focus is on diagnosis of acute disorders affecting the brainstem and cranial nerves, particularly stroke. He is recognized for his research in novel eye-movement-based bedside methods for diagnosing stroke in patients with acute dizziness and vertigo in the emergency department and, in 2024, won the international Bárány Society’s Hallpike-Nylén Prize for clinical research achievement. Dr. Newman-Toker serves as director of the Division of Neuro-Visual & Vestibular Disorders in the Department of Neurology. He also directs the Armstrong Institute Center for Diagnostic Excellence, whose mission is to catalyze efforts to improve diagnostic performance, develop the science of diagnostic safety, and enhance diagnostic research. He has been the principal investigator on numerous National Institutes of Health, Agency for Healthcare Research and Quality (AHRQ), and foundation grants. He has published over 165 journal articles and given more than 300 invited lectures. He has served as an expert consultant on diagnostic safety and quality to AHRQ, the National Quality Forum, and the National Academy of Medicine. He has testified before Congress on the use of artificial intelligence for medical diagnosis. He was president of the Society to Improve Diagnosis in Medicine from 2018-2020. Dr. Newman is rated as a Distinguished provider by MediFind in the treatment of Stroke. His top areas of expertise are Vertigo, Benign Paroxysmal Positional Vertigo, Stroke, and Brown Syndrome.

Dr. Mona Bahouth is a stroke neurologist and researcher specializing in patient-centered approaches to enhancing early stroke recovery. Dr. Bahouth earned her MSN at Syracuse University, her MD at the University of Maryland, and her PhD from the Johns Hopkins University. She completed her residency in neurology at The Johns Hopkins Hospital, followed by a cerebrovascular fellowship at that institution. Her work focuses on innovative solutions to optimizing systems of care in the early stroke recovery period. Dr. Bahouth is rated as a Distinguished provider by MediFind in the treatment of Stroke. Her top areas of expertise are Stroke, Cerebral Arteriovenous Malformation, Transient Ischemic Attack (TIA), Thrombectomy, and Gastrostomy.

Dr. Felling is the director of the Johns Hopkins Pediatric Stroke Program and specializes in the evaluation and treatment of children with a wide range of cerebrovascular disorders. With combined training in child neurology and vascular neurology he offers expertise in both the acute diagnosis and treatment of stroke as well as longitudinal management of the neurological consequences of stroke in children. Dr. Felling earned both his M.D. and his Ph.D. in neuroscience at Penn State College of Medicine. He completed residency training in pediatrics at the Children’s Hospital of Philadelphia. He also completed residency training in pediatric neurology and a fellowship in vascular neurology at Johns Hopkins. Dr. Felling's goal is to improve the clinical care of patients through the development of efficient pathways for the rapid evaluation and treatment of children presenting with stroke. He is part of a multidisciplinary team of providers that care for children with cerebrovascular disorders. Clinical research efforts are aimed at improving neurological function in children following stroke and other brain injuries. Dr. Felling is rated as an Advanced provider by MediFind in the treatment of Stroke. His top areas of expertise are Stroke, Concussion, Delirium, Thrombectomy, and Endovascular Embolization.

Dr. Caplan specializes in the treatment of cerebrovascular disorders of the brain, head, neck and spine, such as aneurysms, arteriovenous malformations, arteriovenous fistulas, moyamoya disease, carotid artery stenosis and stroke. He is dual fellowship trained in both open cerebrovascular neurosurgery and endovascular neurosurgery, allowing him to offer patients the full spectrum of the latest surgical and endovascular techniques in treating these diseases. Dr. Caplan also focuses on treating acoustic neuromas and other tumors of the skull base, including meningiomas. Dr. Caplan graduated with honors from the Johns Hopkins University with a degree in neuroscience, where he spent time in the Hunterian Neurological Surgery Research Laboratory. He then earned his medical degree from Harvard Medical School. He completed his neurosurgery residency at Johns Hopkins, along with fellowships in cerebrovascular neurosurgery and endovascular neurosurgery, also at Johns Hopkins. He then completed an additional fellowship in endovascular neurosurgery at the University of Miami before returning to join the Johns Hopkins faculty. Dr. Caplan is rated as an Advanced provider by MediFind in the treatment of Stroke. His top areas of expertise are Brain Aneurysm, Arteriovenous Malformation, Cerebral Arteriovenous Malformation, Thrombectomy, and Carotid Artery Surgery.

Dr. Majid Khan is a Radiologist and Director, Non-Vascular Spine Intervention at Johns Hopkins University hospitals. Dr. Khan graduated from University of Kashmir, India in 1993. He completed his residency in radiology at the Nassau University Medical Center at Stony Brooks University and then completed his fellowship in Neuroradiology at Johns Hopkins University. Dr. Majid is deeply invested in both diagnostic Neuroradiology with particular emphasis on advanced head & neck and spine tumor imaging. His prime interest is doing spine tumor ablations primarily using microwave ablation devices and has performed the most number of such cases in the United States. He has significant expertise in spine cement augmentation procedures like kyphoplasty and vertebroplasty for treatment of compression fractures due to osteoporosis, multiple myeloma and/or other tumor-associated pathological fractures, sacroplasty for the treatment of fractures of the sacrum, epidural steroid injections, facet and transforaminal nerve blocks. He has treated a considerable number of patients with Tarlov and synovial cysts. Dr. Khan is a core member of Johns Hopkins Headaches and CSF Leak Program doing both targeted and non-targeted blood and fibrin glue patches. In addition, Dr. Khan has performed numerous imaging-guided head and neck biopsies with expertise in deep trans-facial biopsies. Dr. Majid has contributed to numerous publications and book chapters and has given regional, national and international talks, as well as presented research at many national meetings. He is a member of the American Society of Neuroradiology, American College of Radiology, American Society of Spine Radiology, North American Spine Society, Radiologic Society of North America, European Society of Radiology. Dr. Khan is rated as an Advanced provider by MediFind in the treatment of Stroke. His top areas of expertise are Cerebrospinal Fluid Leak, Meningocele, Tarlov Cysts, Vertebroplasty, and Bone Graft.

L. Fernando Gonzalez, M.D., is a cerebrovascular neurosurgeon trained in both open vascular surgery and minimally invasive endovascular approaches. He treats patients with vascular blockages, malformations and ruptures in the brain and spine, including aneurysms, strokes and arteriovenous malformations. He also specializes in delivering chemotherapy through the arteries of the brain for treatment of certain eye cancers, such as retinoblastomas — the most common eye cancer in children — and lacrimal gland carcinomas. Dr. Gonzalez sees patients at The Johns Hopkins Hospital and Johns Hopkins Bayview Medical Center. Dr. Gonzalez earned his medical degree from Pontificia Universidad Javeriana in Bogota, Colombia, where he also completed residency training in neurosurgery. He completed a neurosurgery research fellowship at Barrow Neurological Institute in Phoenix, Arizona, with a focus on skull base, vascular and microanatomy microsurgery. Dr. Gonzalez continued his training at Barrow by completing a second residency, during which he pursued additional fellowships in spine surgery, endovascular neurosurgery, and cerebrovascular and skull base surgery. Dr. Gonzalez is widely published in his field and actively pursues novel approaches to treatment. He invented an aspiration catheter with an attached guidewire, and a surgical retractor for minimally invasive brain surgery. He is also a co-inventor of a direct cerebral cooling device that allows clinicians to decrease cerebral temperature to protect the brain when needed after cardiac arrest, severe trauma or large strokes. Videos Meet Our Expert: L. Fernando Gonzalez, M.D.Cerebrovascular Neurosurgery. Dr. Gonzalez is rated as an Advanced provider by MediFind in the treatment of Stroke. His top areas of expertise are Brain Aneurysm, Subarachnoid Hemorrhage, Stroke, Stent Placement, and Transmyocardial Revascularization.

Ning Cao, M.D., is a rehabilitation physician specializing in stroke and brain injury rehabilitation. She has training and expertise using nerve block and botulinum toxin injections for spasticity management and robotic-assisted technology to help patients recover and regain independence after brain injury and other neurologic conditions. In addition, she is a musculoskeletal sonographer and performs acupuncture for stroke recovery and pain management. Dr. Cao obtained her medical degree from the Hebei Medical University in China. She completed a residency in physical medicine and rehabilitation at the Albert Einstein Montefiore Medical Center in New York City. Dr. Cao has served as an attending physician and a director of stroke rehabilitation programs in several medical centers, most recently at MossRehab/Jefferson Health. She has held her academic appointment as clinical associate professor in rehabilitation medicine at Thomas Jefferson University since 2020. Dr. Cao’s research focuses on improving quality of care and outcomes for patients who experience stroke. She led several research projects, including investigation of the feasibility and efficacy of robotic-assisted gait training in inpatient rehabilitation setting and effectiveness of early rehabilitation program for COVID patients. Dr. Cao has co-authored numerous research papers and presented her findings at national and international rehabilitation conferences. Dr. Cao has served as a mentor and an educator helping train many medical students, residents and fellows across several programs. Dr. Cao is rated as an Advanced provider by MediFind in the treatment of Stroke. Her top areas of expertise are Stroke, Hemiplegia, Subarachnoid Hemorrhage, and Alien Hand Syndrome.

Dr. Debraj “Raj” Mukherjee’s clinical focus is the treatment of patients with primary and metastatic brain lesions. His clinical work and research emphasize the development of individual treatment plans that optimize survival and quality of life in all patients. After receiving his medical degree from Dartmouth Medical School, Dr. Mukherjee was recruited to Johns Hopkins, where he studied epidemiology, biostatistics and clinical design at the Johns Hopkins Bloomberg School of Public Health and served as Director of the Neuro-Oncology Surgical Outcomes Laboratory in the Department of Neurosurgery. Dr. Mukherjee completed neurosurgery residency at Cedars-Sinai Medical Center, where he was named a Robert Wood Johnson Foundation Health & Society Scholar. He completed an open and endoscopic skull base fellowship with the Center for Skull Base Surgery at University of Pittsburgh Medical Center, where he was a Copeland Scholar. Throughout his career, Dr. Mukherjee has led patient-centered research pursuits in neuro-oncology including development of a national registry for patients with brain tumors, creation of disease-specific quality of life instruments for patients with skull base tumors, and development of innovative clinical trials in neuro-oncology. He leads the Meningioma, Brain Metastasis, and Neurosurgical Oncology centers at Johns Hopkins Medicine, and he serves as Assistant Residency Program Director for one of the largest neurosurgical training programs in the country. His work has been supported by the American Medical Association, Glioblastoma Foundation, National Institute on Aging, and National Cancer Institute. Dr. Mukherjee can be contacted at drraj@jhmi.edu. Dr. Mukherjee is rated as an Advanced provider by MediFind in the treatment of Stroke. His top areas of expertise are Meningioma, Pituitary Tumor, Brain Tumor, Awake Craniotomy, and Laminectomy.

Dr. Peter Kaplan is Professor of Neurology and serves as the Director of Epilepsy and EEG at Johns Hopkins Bayview Medical Center. He focuses on epilepsy, clinical neurophysiology and nonconvulsive status epilepticus. He has written extensively about these subjects as well as about eclampsia and neurologic disease in women. Dr. Peter Kaplan received his medical training from St. Bartholomews Medical School, University of London. He then obtained membership to the Royal College of Physicians in England. He completed his residency in neurology at Duke University Medical Center. He completed fellowships in epilepsy and clinical neurophysiology at the same institution. Dr. Kaplan currently sees patients at the Johns Hopkins Bayview Medical Center on Tuesdays and Wednesdays. Dr. Kaplan is rated as an Advanced provider by MediFind in the treatment of Stroke. His top areas of expertise are Seizures, Generalized Tonic-Clonic Seizure, Status Epilepticus, Epilepsy, and Awake Craniotomy.