Meet Our Team

Our specialized Pediatric Cerebrovascular team is dedicated to supporting your child and your family from the first visit, through surgery, and follow-up care. We have decades of experience will partner with you and your family to develop the best possible plan of care for your child.

Alejandro Berenstein, MD
Director, Pediatric Cerebrovascular Program
Professor of Neurosurgery, Radiology, & Pediatrics

J Mocco, MD, MS
Director, Cerebrovascular Center
Professor and System Vice Chair, Neurosurgery

Johanna T. Fifi, MD
Director, Endovascular Stroke Program
Assistant Professor of Neurosurgery & Radiology

Reade A. De Leacy, MD
Director, Neurointerventional Spine Program
Assistant Professor of Neurosurgery & Radiology 

Christopher P. Kellner, MD
Director, Intracerebral Hemorrhage Program
Assistant Professor, Neurosurgery 

Thomas J. Oxley, MD, PhD
Director, Innovation Strategy
Instructor, Neurosurgery 

Evelyn Dier, PA
Senior Physician Associate

Paul Singh, MD, MPH
Assistant Professor of Neurosurgery, Neurology, & Radiology 

Joshua B. Bederson, MD
Professor and System Chair, Neurosurgery

Michelle A. Sorscher, RN, MSN, CPNP
Nurse Practitioner & Clinical Program Manager

Kara Grayson
Social Worker

Mee Lee Plumeau
Surgical Scheduling Coordinator