Stroke and Cerebrovascular Center | Meet Our Team

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The Stroke and Cerebrovascular Center brings together a strong, diverse team of clinicians whose combined skills ensure that stroke is treated in the context of the “whole child”, and that every child reaches his or her fullest potential.

Team Leaders of Stroke and Cerebrovascular Center

Michael RivkinMichael J. Rivkin, MD, Co-Director

Dr. Rivkin is the founder and director of the Stroke and Cerebrovascular Center at Boston Children’s Hospital. A child neurologist who is also fully trained in pediatrics, he has 20 years experience as an attending in child neurology at Boston Children’s. Dr. Rivkin also directs the Intensive Care Neurology Consultation Service in the Department of Neurology and has experience in the management of increased intracranial pressure, cerebral perfusion and neuroprotection. He participates in both acute inpatient care and long-term outpatient care of children with cerebrovascular disorders and stroke.

Cameron TrenorCameron Trenor, MD, Co-Director

Dr. Trenor, a hematologist fully trained in pediatrics, brings to the program expertise in blood- and coagulation-related processes related to pediatric stroke. He also has expertise in vascular anomalies in children, inside and outside the central nervous system. Dr. Trenor participates in both inpatient and outpatient care of children in our program.

Edward Smith, MD

Dr. Smith, a neurosurgeon with deep skill and knowledge about cerebrovascular surgery, has widely recognized expertise in the surgical treatment of moyamoya disease and is highly experienced in the surgical treatment of children with brain hemorrhage. Dr. Smith is also co-director of the Cerebrovascular Surgery and Interventions Center.

Specialty Care

Laura Lehman, MD

Dr. Lehman is an attending physician in the Department of Neurology. She is fully trained in child neurology and has successfully completed a two-year fellowship in pediatric cerebrovascular disorders and stroke. She provides both inpatient and outpatient care to children with cerebrovascular disorders and stroke, and cares for critically ill children as an attending physician in the Intensive Care Neurology consultation service.

Amy Danehy

Amy Danehy, MD

Dr. Danehy is the Stroke and Cerebrovascular Center’s lead neuroradiologist. Fully trained in pediatric radiology with additional fellowship training in pediatric neuroradiology, she is expert in magnetic resonance imaging (MRI), angiography (MRA), computed tomography (CT) and percutaneous catheter angiography of the brain. Dr. Danehy leads the Program’s weekly neuroradiology conference that precedes each outpatient clinic session. 

Darren OrbachDarren Orbach, MD, PhD

Dr. Orbach is the Program’s interventional neuroradiologist, bringing the unique combination of full training in neurology, neuroradiology and interventional neuroradiology. Dr. Orbach performs both diagnostic and therapeutic endovascular (catheter-based) procedures, including the endovascular delivery of thrombolytic agents for stroke when indicated and treatment of vascular malformations of the central nervous system. He is co-director of the Cerebrovascular Surgery and Interventions Center.

Rebekah MannixRebekah Mannix, MD, MPH

Dr. Mannix is fully trained in pediatric emergency medicine, and is the lead physician for the Stroke and Cerebrovascular Center in the Emergency Department. She has played a key role in developing the Acute Pediatric Stroke protocol at Boston Children’s Hospital that has led to the availability and use of tissue plasminogen activator (tPA) for children 2 years of age and older who present with acute stroke.


Ryan Walsh StaffRyan Walsh
Program Coordinator


Christine Mrakotsky

Christine Mrakotsky, PhD

Dr. Mrakotsky, the Program’s neuropsychologist, has extensive experience in the neuropsychological evaluation of children. She provides both inpatient and outpatient evaluations of children with cerebrovascular disorders and stroke.  In addition to her skill in assessment, she provides careful recommendations to parents and teachers to optimize a child’s success in the classroom. Dr. Mrakotsky is also a funded research neuropsychologist.

Annette Correia, OTAnnette Correia, OT

Ms. Correia is the lead occupational therapist in the Stroke and Cerebrovascular Center. She has extensive experience in the treatment of children with stroke and cerebral palsy. In addition, she is facile with the use of therapeutic approaches, such as constraint induced movement therapy (CIMT) and bimanual therapy (BMT).

Lindsay Simmons, BSN

Ms. Simmons is the nurse clinician in the Stroke and Cerebrovascular Center and part of the team from its beginning. She interacts with patients, their families and pediatricians, and collects clinical data from the time patients are first referred to the Program through their clinical courses.

Miya Bernson-Leung, MD, EdM

Associate in Neurology

Department: Neurology

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Hillary Horte, MS, FNP-C

Department: Neurology

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