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Meet Our New Neurologists

Christina Graley, M.D.

Assistant Professor of Neurology

Christina Graley is a neurologist who is fellowship-trained in headache medicine. She specializes in migraine headaches, cluster headaches and facial pain syndromes.

Dr. Graley obtained her medical degree from Marshall University in West Virginia. She completed her residency in internal medicine at Virginia Commonwealth University, where she remained for residency training in neurology. Her fellowship training in headache medicine was completed at the Johns Hopkins University School of Medicine.


Babitha Haridas, M.B.B.S.

Assistant Professor of Neurology

Pediatric epileptologist Babitha Haridas specializes in diagnosis and treatment of children with epilepsy, with a focus on those who have refractory epilepsy — patients who continue to have seizures despite taking multiple medications. Dr. Haridas seeks alternate modalities of treatment including ketogenic diet therapy, neurostimulation and epilepsy surgery.

Dr. Haridas obtained her medical degree from the Amrita Institute of Medical Sciences. She completed residency training in pediatrics and pediatric neurology at the University at Buffalo School of Medicine & Biomedical Sciences, then completed an epilepsy fellowship at the Johns Hopkins University School of Medicine.

Dr. Haridas has received numerous accolades in medical education, and she is the director of the pediatric epilepsy fellowship program at Johns Hopkins. Her research interests include refractory epilepsy syndromes such as Lennox Gastaut syndrome, and electrical status epilepticus in sleep.

Dr. Haridas sees patients at the Johns Hopkins Outpatient Center in Baltimore. She also sees patients in Maryland via telemedicine on Wednesday afternoons.


Payam Mohassel, M.D.

Assistant Professor of Neurology

Neurologist Payam Mohassel specializes in myopathies, muscular dystrophies and other hereditary neuromuscular disorders. Dr. Mohassel obtained his medical degree from the Johns Hopkins University School of Medicine, where he remained for a medical internship, residency training in neurology and clinical fellowship training in neuromuscular medicine. He then joined the National Institute of Neurological Disorders and Stroke neurogenetics branch as a clinical research fellow.

Dr. Mohassel’s research focuses on translational studies on neuromuscular disorders, and it spans gene discovery efforts, mechanistic studies to identify therapeutic targets and early phase interventional clinical trials.


Bipasha Mukherjee-Clavin, M.D.

Assistant Professor of Neurology

Bipasha Mukherjee-Clavin is a fellowship-trained neurologist specializing in peripheral neuropathy, Charcot-Marie-Tooth disease and immune-mediated neuropathy.

Dr. Mukherjee-Clavin completed medical and postdoctoral training and a neurology residency and neuromuscular fellowship at the Johns Hopkins University School of Medicine. She is joining the neuromuscular division, the peripheral nerve center, the Charcot-Marie-Tooth center and the electromyography laboratory at Johns Hopkins. She is interested in using patient induced pluripotent stem cell derived neurons and Schwann cells to model and treat peripheral neuropathies.


Olwen Murphy, M.B.B.Ch.

Assistant Professor of Neurology

Olwen Murphy is a fellowship-trained neurologist specializing in multiple sclerosis, spinal cord disorders, and vestibular disorders and diseases. Dr. Murphy completed medical school at University College Dublin, a neurology residency through the Royal College of Physicians of Ireland and fellowship training in neuroimmunology and vestibular and ocular motor neurology at the Johns Hopkins University School of Medicine. She treats patients who have multiple sclerosis, vestibular disorders and dizziness, and spinal cord disorders such as transverse myelitis. Her research focuses on clinical and imaging biomarkers in multiple sclerosis and spinal cord disorders.


Ashley Paul, M.D.

Assistant Professor of Neurology

Neurologist Ashley Paul specializes in movement disorders and also serves as a clinician educator.

Dr. Paul has expertise in Parkinson's Disease, atypical parkinsonism, tremors, chorea, dystonia, ataxia, restless leg syndrome, rapid eye movement sleep behavioral disorders, periodic limb movement of sleep and deep brain stimulation. She offers botulinum toxin injections for the treatment of dystonia. 


Bhavana Sharma, M.D.

Assistant Professor of Neurology

Neurologist Bhavana Sharma specializes in neuromuscular disorders, epilepsy, electromyography (EMG) and nerve conduction studies, neuromodulation with devices such as a vagal nerve stimulator and neurological conditions including headache, Parkinson’s disease, stroke and dementia. Dr. Sharma is certified by the American Board of Psychiatry and Neurology and has subcertification in clinical neurophysiology.

Dr. Sharma graduated from the Bharti Vidyapeeth Medical College in Pune, India, in 2000 and completed an internal medicine residency at St. Stephen’s Hospital in Delhi in 2007. She also completed a neurology residency at the University of Arkansas for Medical Sciences in 2017, followed by a clinical neurophysiology fellowship at the University of Kansas Medical Center in 2018.


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