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Zoltan Mari, MD

Director, Johns Hopkins Parkinsons and Movement Disorder Center; Director, Johns Hopkins Movement Disorders Fellowship
Associate Professor of Neurology

See Research on Pubmed | See Research on Google Scholar

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The Johns Hopkins Hospital

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  • Director, Johns Hopkins Parkinsons and Movement Disorder Center; Director, Johns Hopkins Movement Disorders Fellowship
  • Director, Movement Disorder Fellowship Training Program
  • Director, Dystonia and Chemodenervation Center
  • Director, Deep Brain Stimulation Center
  • Associate Professor of Neurology

Centers & Institutes

  • Ataxia Center
  • Brain Stimulation Center
  • Dystonia and Chemodenervation Center
  • Morris K. Udall Parkinson's Disease Research Center
  • Parkinson's Disease and Movement Disorders Center


Botulinum Toxin Injections, Clinical Neurophysiology, Deep Brain Stimulation, Dystonia, Intraoperative Neuromonitoring, Movement Disorders, Neurology, Parkinson's Disease

Research Interests

dystonia; deep brain stimulation; neuroprotection; chemodenervation; electrophysiology


As the director of the Johns Hopkins Parkinson’s Disease and Movement Disorders Center, Dr. Zoltan Mari's clinical practice focuses on movement disorders, including Parkinson's disease and related syndromes, essential tremor and dystonia, with particular interest in deep brain stimulation (DBS) therapy and botulinum toxin injections for sialorrhea (drooling or excessive salivation). His clinical interests also include clinical neurophysiology, including nerve conduction/electromyography and intra-operative monitoring.

Zoltan Mari, M.D., graduated first in his Medical School class at the University of Szeged, Hungary. His training includes residency in neurology (SUNY Downstate, Brooklyn, NY), fellowship in movement disorders and clinical neurophysiology with EMG emphasis (both at NIH, Bethesda, MD), and Clinical Research Curriculum Certificate (NIH). He is board certified in neurology and clinical neurophysiology by ABPN. During his senior fellowship years Dr. Mari served as Director of the NIH Botulinum Toxin Clinic and was featured in CBSs 60 minutes, as the injector of the pianist Leon Fleisher. Dr. Mari received travel awards from the AAN and ANA during his training years.


  • English
  • Hungarian


1. American Medical Association (AMA, member since 1997)
2. American Academy of Neurology (AAN, member since 1998)
3. Alpha Omega Alpha Honor Medical Society, Housestaff Membership in ETA Chapter of New York (since the 2000-
2001 Academic Year, lifetime membership)
4. Movement Disorders Society (member since 2001)
5. Clinical Neurophysiology Section, AAN (Section member since 2002)
6. Movement Disorders Section, AAN (Section member since 2002)
7. Society for Neuroscience (regular member since 2005)
8. American Association of Neuromuscular & Electrodiagnostic Medicine (Member since 2005)

Clinical Trial Keywords

  • Botulinum toxin type B injection in the treatment of sialorrhea (drooling or excessive salivation)
  • movement disorders
  • Parkinson's disease, neuroprotection

Additional Resources

Additional Resources +
  • Education +


    • Albert Szent-Gyorgyi Medical University University of Szeged (Szeged H - 6720) (1993)


    • SUNY Downstate - College of Medicine / Neurology (Brooklyn NY ) (2001)


    • National Institutes of Health - Credentialing Services Section / Neurophysiology (Bethesda MD ) (2007)
    • National Institutes of Health - Credentialing Services Section / Movement Disorders (Bethesda MD ) (2005)
    • SUNY Downstate - College of Medicine / Neurology (Brooklyn NY ) (1997)


    • General, American Board of Psychiatry & Neurology - Neurology (2014)
    • Clinical Neurophysiology, American Board of Psychiatry & Neurology (2007)
  • Research & Publications +

    Selected Publications View all on PubMed

    Sheridan, M.B.; Bytyci, A.; Stinnett, V.; Umeh, C.; Mari, Z.; Dawson, T.M.; Bodurtha, J.; and Batista, D.A.S.: Myoclonus-dystonia and Silver-Russell syndrome resulting from maternal uniparental disomy of chromosome 7. Clin Genet, doi: 10.1111/cge.12075. [Epub ahead of print], PMID: 23237735, 2012

    Umeh, C.C.; Nichols, P.; Rosenthal, L.S. and Mari, Z.: Dual treatment of hemichorea-hemiballismus syndrome with tetrabenazine and chemodenervation. Tremor Other Hyperkinet Mov (N Y), 2. doi:pii: tre-02-113-791-3, Epub 2012

    Mari, Z.; Rosenthal, L.S.; Darwin, K.; Hallett, M. and Jinnah, H.A.: Clinical Reasoning: A 57 Year Old Man with Jaw Spasms. Neurology, 80(10):e104-7. doi: 10.1212/WNL.0b013e318285c14a, 2013

    Probasco, J.C.; Sahin, B.; Tran, T.; Chung, T.H.; Rosenthal, L.S.; Mari, Z. and Levy, M.: Perioperative Neurological Consultation, The Neurohospitalist, DOI: 10.1177/1941874413476042, 2013

    Zakaria, R.; Lenz, F.A.; Hua, S.; Avin, B.H.; Liu, C.C. and Mari, Z.: Thalamic physiology of intentional essential tremor is more like cerebellar tremor than postural essential tremor. Brain Res, doi:pii: S0006-8993(13)00976-1. 10.1016/j.brainres.2013.07.011. [Epub ahead of print], PMID: 23856324, 2013

    Ramirez-Castaneda, J.; Jankovic, J.; Comella, C.; Dashtipour, K.; Fernandez, H.H. and Mari, Z.: Diffusion, Spread, and Migration of Botulinum Toxin. Mov Disord. doi: 10.1002/mds.25582. [Epub ahead of print] PMID: 23868503, 2013


    Dr. Mari is a team member of the Johns Hopkins Morris K. Udall Parkinson's Disease Research Center of Excellence where he reviews all charts and sees all patients enrolled in the Longitudinal Study at the Udall Center. He is the senior author of a research effort titled “Factors Associated with Falls in Parkinson's Disease”, a project that made use of the Longitudinal Dataset acquired as part of the main clinical research activities at Udall Center and was recently accepted as an abstract publication to the 15th International Congress of Parkinson’s Disease and Movement Disorders.

    Dr Mari's research focuses on clinical trials in Parkinson’s disease modification and neuroprotection, and the neurophysiology of and motor control in movement disorders, with particular interest in basal ganglia pathophysiology in dystonia. In his leadership of the Deep Brain Stimulation Program at Johns Hopkins Hospital he has been the principal investigator on multiple major NIH-funded clinical trials on neuroprotection in Parkinson disease, including the NET-PD and QEIII trials (to investigate the possible disease modifying effect of creatine and Coenzyme Q10, respectively). 

    Clinical Trials

    Learn more about active clinical trials taking place at the Johns Hopkins Parkinson’s Disease and Movement Disorders Center.

  • Academic Affiliations & Courses +
  • Activities & Honors +


    1. TEMPUS grant ( (international educational grant by the EU, in the amount of about $3000, 27 medical student recipients in all of Hungary in 1992), supporting a 12-week study trip to Granada University, Spain, 1992
    2. Government Scholarship of the Hungarian Republic (including exemption from all medical school tuition fees and about $200 monthly stipend, comparable to a starting MD salary in Hungary at the time) in 3 consecutive years: 1990-91; 1991-92; 1992-93 (in 4th, 5th, and 6th year course of medical school in a 6-year curriculum)
    3. Travel Grant from Soros Foundation to support a 4-week study trip to the University of Oxford, 1994
    4. Intern of The Year title with a bronze plaque and $100 cash prize granted by the Dept. of Medicine, Brookdale University Hospital, 1997-98
    5. Award by the American Neurological Association (Academic Neurology: Preparing for the Future, a $500 award toward the 1999 ANA Annual Meeting in Seattle), Seattle, 1999
    6. Appointment as Chief Resident in Neurology for Academic Year 2000-2001 at SUNY HSCB, Neurology Residency Program), Brooklyn, 2000
    7. Elected Housestaff Membership in ETA Chapter of New York, Alpha Omega Alpha Honor Medical Society (2000-2001 Academic Year, lifetime honorary membership), elected by members of the Alpha Omega Alpha Honor Medical Society (, 2001
    8. AAN Resident Scholarship Award recipient ($1000 toward the 2001 AAN annual meeting in Philadelphia), Philadelphia, 2001
    9. ANA Travel Fellowship Award recipient ($1000 toward the 2005 ANA annual meeting in San Diego), San Diego, 2005
    10. Teaching Award: Zoltan Maris Movement Disorder Clinic ranked #1 by Clerkship (2nd year) Johns Hopkins Medical Students among all Johns Hopkins Neurology Faculty Clinics, 2011

  • Videos & Media +


    Meet our Expert - Dr. Zoltan Mari

    Dr. Zoltan Mari, Interim Director of the Johns Hopkins Parkinson's Center and Movement Disorders Center, specializes in deep brain stimulation and movement disorders, such as dystonia, Parkinson's Disease and essential tremor.

    Patient Video: Dystonia - Jeffrey's Story

    Deep Brain Stimulation Webinar: Dr. Mari discusses surgical options for Parkinson's Disease

    Recent News Articles & Media Coverage

  • Events +

    Speaking Engagements

    Parkinson''s Disease Overview: Quo Vadis?
    PFNCA Annual Symposium 2013
    2013-11-21 13:47

  • Contact & Locations +


    The Johns Hopkins Hospital
    600 N. Wolfe Street
    Baltimore, MD 21287
    Phone: 410-502-0133
    Appointment Phone: 410-502-0133
    Fax: 410-502-6737
    Location Map
    Johns Hopkins Outpatient Center
    601 N. Caroline Street
    Baltimore, MD 21287
    Phone: 410-502-0133
    Appointment Phone: 410-955-9441
    Location Map


    • Neurology - Movement Disorders
    • Neurology - Intraoperative Neuromonitoring

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