The team in the Collaborative Center for X-linked Dystonia Parkinsonism is dedicated to furthering the understanding of this rare genetic disorder.

Executive Leadership
Cristopher Bragg

Cristopher Bragg, PhD
Director, Collaborative Center for X-linked Dystonia Parkinsonism (CCXDP)
Department of Neurology, Massachusetts General Hospital
Assistant Professor of Neurology, Harvard Medical School


Anne B. Young, MD

Anne B. Young, MD, PhD
Co-Chair, External Science Advisory Board, CCXDP
Co-Chair, CCXDP Scientific Advisory Board
Former Chief of Neurology, Massachusetts General Hospital
Julianne Dorne Distinguished Professor of Neurology,
Harvard Medical School


Michael Schwarzschild, MD, PhD

Michael Schwarzschild MD, PhD
Co-Chair, CCXDP Scientific Advisory Board
Executive Committee Chair, Parkinson Study Group
Clinical Neurologist, Massachusetts General Hospital
Julianne Dorne Professor of Neurology, Harvard Medical School


Merit Cudkowicz, MD, MSc

Merit Cudkowicz, MD, MSc
Chief of Neurology, Massachusetts General Hospital
Director, Neurological Clinical Research Institute
Julieanne Dorn Professor of Neurology, Harvard Medical School
Co-Founder and Former Co-chair, Northeast ALS Consortium


Geraldine Acuna Sunshine

Geraldine Acuña-Sunshine
Co-Founder, CCXDP
Founder and President, Sunshine Care Foundation, Inc.


Amy Alessi, PhD

Amy Alessi, PhD
Program Director, CCXDP
Department of Neurology, Massachusetts General Hospital


Clinical Leadership
Albert Hung, MD, PhD

Albert Hung, MD, PhD
Co-Head, Clinical Research, CCXDP
Senior Clinical Neurologist, Massachusetts General Hospital
Associate Director of the MGH Movement Disorders Unit
Assistant Professor of Neurology, Harvard Medical School


Nutan Sharma

Nutan Sharma, MD, PhD
Principal Investigator, Dystonia Partners Research Bank
Director, Neurological Clinical Research Institute
Medical Director, Partners Dystonia Clinic,
Massachusetts General Hospital
Associate Professor of Neurology, Harvard Medical School


Ellen Penney

Ellen B. Penney, MD, PhD
Neurologist in the Movement Disorders,
Dystonia Clinic and Huntington's Disease Unit,
Massachusetts General Hospital
Instructor in Neurology, Harvard Medical School


Principal Investigators
Xandra Breakefield

Xandra Breakefield, PhD
Professor of Neurology
Harvard Medical School
Geneticist, Neurology, & Radiology
Massachusetts General Hospital

Laurie Ozelius

Laurie Ozelius, PhD
Associate Professor of Neurology
Harvard Medical School
Associate Neuroscientist, Neurology
Massachusetts General Hospital

Michael Talkowski

Michael Talkowski, PhD
Associate Professor of Neurology (Genetics), Psychiatry, and Pathology
Center for Genomic Medicine
Massachusetts General Hospital
Associate Member, Broad Institute of MIT and Harvard


Clinical Team
Ann Hunt, DO

Ann L. Hunt, DO
Neurologist, Movement Disorders,
Massachusetts General Hospital


Marisela Dy-Hollins

Marisela Dy-Hollins, MD
Director, Pediatric Movement Disorders Clinic
Neurologist, Movement Disorders
Instructor in Neurology, Harvard Medical School


Christopher Stephen

Christopher D. Stephen, MB, CHB
Neurologist, Movement Disorders,
Dystonia Clinic and Ataxia Unit,
Massachusetts General Hospital


deGuzman

Jan Kristoper de Guzman, MD
Neurologist
Visiting Consultant, Jose Reyes Memorial Medical Center
Visiting Consultant, Mary Mediatrix Medical Center
Active Professional Staff, Asian Hospital and Medical Center (Department of Neuroscience)
Active Consultant, Paranaque Doctors Hospital


Tricia Multhaupt-Buell

Trisha Multhaupt-Buell, MS, CBC
Clinical Research Program Coordinator,
Genetic Counselor
Massachusetts General Hospital


Melanie Supnet, MD

Melanie Leigh De Las Alas Supnet, MD
Research Fellow, Movement Disorder Clinics,
Massachusetts General Hospital


Patrick Acuna

Patrick Acuña, MD, MPH
Senior Clinical Research Coordinator,
Massachusetts General Hospital


Samuel Carr

Samuel Carr
Clinical Research Coordinator, Dystonia Clinic
Massachusetts General Hospital