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Ellen Mowry, M.D.

Ellen Mahar Mowry, M.D.
Associate Professor of Neurology


Appointment Phone


Main Location

The Johns Hopkins Hospital

Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

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  • Associate Professor of Neurology

Centers & Institutes



The Johns Hopkins Hospital

Appointment Phone: 410-614-1522

600 N. Wolfe Street
Sheikh Zayed Tower
Baltimore, MD 21287 map


Multiple Sclerosis, Neurology

Research Interests

The role of vitamin D in MS


Dr. Mowry became interested in multiple sclerosis (MS) prior to beginning college and first performed research in multiple sclerosis as an undergraduate biology major at Georgetown University. As a neurology resident at the University of Pennsylvania, she began her multiple sclerosis clinical research activities in conducting a study of visual dysfunction and quality of life in multiple sclerosis. As a fellow at UCSF, Dr. Mowry evaluated prognostic factors in multiple sclerosis and examined health-related quality of life in multiple sclerosis, particularly as a marker of disease burden. Dr. Mowry continued as a member of the faculty. She explored the association of vitamin D status with the risk of relapses among children with MS and was subsequently awarded a grant from the NIH to study the role of vitamin D in the course of MS.

Dr. Mowry joined the Johns Hopkins Department of Neurology as an Assistant Professor in July, 2011. In addition to ongoing studies, she is launching a multicenter randomized controlled trial of vitamin D supplementation in MS. more

    Additional Information

  • Education +


    • University of Rochester / MD (2003)


    • Hospital of the University of Pennsylvania / Neurology (2007)


    • University of California San Francisco School of Medicine / Neurology (2009)


    • American Board of Psychiatry & Neurology / Neurology (2008)
  • Research & Publications +

    Selected Publications View all on PubMed

    Most Significant Recent Publications:
    1. Mowry EM, Deen S, Malikova I, Pelletier J, Bacchetti P, Waubant E. The onset location of multiple sclerosis predicts the location of subsequent relapses J Neurol Neurosurg Psych 2009;80:400-403.

    2. Okuda DT, Mowry EM, Beheshtian A, Waubant E, Baranzini SE, Goodin DS, Hauser SL, Pelletier D. Incidental MRI anomalies suggestive of multiple sclerosis: the radiologically isolated syndrome Neurology 2009;72:800-805.

    3. Mowry EM, Pesic M, Grimes B, Deen S, Bacchetti P, Waubant E. Demyelinating events in early multiple sclerosis have inherent severity and recovery. Neurology 2009;72:602-608.

    4. Mowry EM, Pesic M, Grimes B, Deen S, Bacchetti P, Waubant E. Clinical predictors of early second event in patients with clinically isolated syndrome. Journal of Neurology 2009;256:1061-1066.

    5. Mowry EM, Loguidice MJ, Daniels AB, Jacobs DA, Markowitz CE, Galetta SL, Nano-Schiavo ML, Cutter GR, Maguire MG, Balcer LJ. Vision-related quality of life in multiple sclerosis: correlation with new measures of low- and high-contrast letter acuity. J Neurol Neurosurg Psychiatry 2009;80:767-772.

    6. Mowry EM, Beheshtian A, Waubant E, Goodin DS, Cree BA, Qualley P, Lincoln R, George MF, Gomez R, Hauser SL, Okuda DT, Pelletier D. Quality of life in multiple sclerosis is associated with lesion burden and brain volume measures. Neurology 2009;72:1760-1765.

    7. Waubant E, Chabas D, Okuda DT, Glenn OA, Mowry E, Henry R, Strober J, Soares B, Wintermark M, Pelletier D. Pediatric patients have a higher disease burden and activity on brain MRI at time of MS onset than adults. Arch Neurol 2009;66:967-971.

    8. Mowry EM, Krupp LB, Milazzo M, Chabas D, Strober JB, Belman AL, McDonald JC, Oksenberg JR, Bacchetti P, Waubant E. Vitamin D status is associated with relapse rate in pediatric-onset multiple sclerosis. Ann Neurol 2010;67:618-624.

    9. Mowry EM, Julian LJ, Im-Wang S, Chabas D, Galvin AJ, Strober JB, Waubant E. Health-related quality of life is reduced in early pediatric multiple sclerosis. Pediatr Neurol 2010;43:97-102.

    10. Okuda DT, Mowry EM, Cree BA, Crabtree EC, Goodin DS, Waubant E, Pelletier D. Asymptomatic spinal cord lesions predict clinical progression in radiologically isolated syndrome. Neurology 2011;76:686-692.

    11. Mowry EM, James JT, Krupp LB, Waubant E. Vitamin D status and antibody levels to common viruses in pediatric-onset multiple sclerosis. Mult Scler 2011;17:666-671.

    12. Castillo-Trivino T, Mowry EM, Chabas D, Crabtree-Hartman E, Cree BA, Goodin DS, Green AJ, Hauser SL, Okuda DT, Pelletier D, Zamvil SS, Vittinghoff E, Waubant E. Efficacy of natalizumab in multiple sclerosis patients with breakthrough disease on first-line therapies PLoS One 2011;3:e16664.

    13. Waubant E, Mowry EM, Krupp L, Chitnis T, Yeh AE, Kuntz N, Ness J, Chabas D, Strober J, McDonald J, Belman A, Milazzo M, Gorman M, Weinstock-Guttman B, Rodriguez M, Oksenberg J, James J. Common childhood viruses and HLA-DRB1 as susceptibility factors for pediatric-onset MS. Neurology 2011;76:1989-1995.

  • Academic Affiliations & Courses +
  • Activities & Honors +
  • Videos & Media +

    Recent News Articles & Media Coverage

    A New Reason to Refill Your Coffee Cup Immediately, Cosmopolitan (03/03/2015)

    Vitamin D May Slow Multiple Sclerosis, Study Suggests, US News & World Report (01/20/2014)

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