OUR TEAM
A multidisciplinary team advancing clinical care, translational research, and innovation in complex craniospinal disorders.
Surgical Director

Paolo A. Bolognese, MD
Dedicated to advancing the understanding, diagnosis, and treatment of complex craniospinal disorders through specialized neurosurgical care, diagnostic and surgical innovation, and biology-guided strategies to improve outcomes for patients with challenging neurological presentations.
Areas of Special Expertise
Craniocervical instability, Chiari 1 Malformation, Syringomyelia, Tethered cord syndrome, Eagle syndrome, Intracranial hypertension, Intracranial hypotension, Cerebral venous outflow disorders and CSF Pressure disorders.
Clinical Leadership

Ilene Ruhoy, MD, PhD
As a collaborating clinician-scientist, Dr. Ruhoy contributes specialized expertise in complex neurological, autonomic, neuroimmune, and connective tissue disorders to support the Center’s clinical and translational research programs.

Jonathan Sisti, MD
Specializing in complex cranial and spinal neurosurgery, Dr. Sisti contributes expertise in the multidisciplinary diagnosis and surgical treatment of complex craniospinal disorders.

George Xipoleas, MD
Dr. Xipoleas specializes in tissue fragility and wound healing in connective tissue disorders, applying specialized soft tissue techniques to optimize surgical closure and recovery.

Michael Travis Caton, MD
Specializing in interventional neuroradiology and neurovascular disorders, Dr. Caton contributes expertise in the diagnosis and evaluation of complex craniospinal disease.
Multidisciplinary Clinical Specialists

Stelios Koutsoumbelis, MD

Prajoy Kadkade, MD

Yelena Markovskaya, MD

Philippa Cheetham, MD

Gad Klein, PhD
Research Team

Allison Bloom, MD
Leading translational research that connects clinical observation, craniospinal disease, and connective tissue biology to advance diagnosis and treatment in Neuro-EDS.

Randall Dass, PhD
Leading molecular research and biomarker discovery to define the biological mechanisms underlying Neuro-EDS.

John B. Biggins, PhD
Leading prospective clinical studies, outcomes research, and trials to advance evidence-based care in Neuro-EDS.
Advanced Practice & Perioperative Care
Jaclyn Amaru, MS PA-C
Peri-Operative Team
Coordinating preoperative preparation and inpatient postoperative care for patients undergoing complex craniospinal surgery.
Philip Papadimas, PA
Providing intraoperative support, postoperative management, and longitudinal follow-up for patients undergoing complex craniospinal surgery.
IOM Solutions
Advanced intraoperative neurophysiologic monitoring for surgical safety.