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Marco A Grados, MD MPH

Clinical Director
Associate Professor of Psychiatry and Behavioral Sciences
Appointment Phone


Main Location

Johns Hopkins Children's Center

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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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  • Clinical Director
  • Associate Professor of Psychiatry and Behavioral Sciences


Adult Psychiatry, Child and Adolescent Psychiatry, Neurodevelopmental Disorders, Obsessive-Compulsive Disorders, Psychiatry

Research Interests

Obsessive-Compulsive Disorder, Tourette Syndrome, Genetics

Additional Resources +
  • Education +


    • Johns Hopkins University Bloomberg School of Public Health (Baltimore MD ) (2001)
    • Programa Academico De Medicina (Lima) (1990)


    • Johns Hopkins University School of Medicine / Child Psychiatry (Baltimore MD ) (1996)
    • Henry Ford Hospital / Psychiatry (Detroit MI ) (1994)


    • Child and Adolescent Psychiatry, American Board of Psychiatry & Neurology (2008)
  • Research & Publications +

    Selected Publications

    1. Nestadt G, Samuels JF, Riddle MA, Bienvenu OJ, Liang KY,
    LaBuda M, Walkup JT, Grados MA, Hoehn-Saric R. (2000). A family study of obsessive-compulsive disorder. Archives of General Psychiatry. 57: 358-363.
    2. Grados MA, Riddle MA, Samuels JF, Liang KY, Hoehn-Saric R, Bienvenu OJ, Walkup JT, Song D, Nestadt G. The familial phenotype of obsessive-compulsive disorder in relation to tic disorders: the Hopkins OCD Family Study. (2001). Biological Psychiatry 50(8): 559-65.
    3. Shugart YY, Samuels J, Willour VL, Grados MA, et al. (2006). Genomewide linkage scan for obsessive-compulsive disorder: evidence for susceptibility loci on chromosomes 3q, 7p, 15q, 6q, and 1q. Molecular Psychiatry. 11(8):763-70.
    4. Grados MA, Samuels J, Shugart YY, Willour VL, et al. (2007). Rare plus common SERT variants in obsessive-compulsive disorder. Molecular Psychiatry. 12(5):422-3.
    5. Grados MA, Vasa RA, Riddle MA, Slomine BS, Salorio C, Christensen J, Gerring JP. (2008). Obsessive-compulsive symptoms in children & adolescents with traumatic brain injury. Depression and Anxiety. 25(5):398-407.
    6. Grados MA, Mathews CA & The Tourette Syndrome Association. (2008). Latent class analysis of Gilles de la Tourette syndrome using comorbidities: clinical and genetic Implications. Biological Psychiatry. 64(3):219-25.
    7. Ginsburg GS, Kingery JN, Drake KL, Grados MA. (2008). Predictors of treatment response in pediatric obsessive-compulsive disorder. Journal of the American Academy of Child & Adolescent Psychiatry. 47(8):868-78.
    8. Grados MA, Riddle MA. (2008). Editorial. Two times four is four: OCD dimensions, classes, and categories. J Am Acad Child Adolesc Psychiatry. 47(7):731-3.
    9. Grados, MA. (2009). The genetics of obsessive-compulsive disorder and Tourette''s syndrome: what are the common factors? Curr Psychiatry Rep. 11(2):162-166.                       10..Srivastava S, Landy-Schmitt C, Clark B, Kline AD, Specht M, Grados MA.  Autism traits in children and adolescents with Cornelia de Lange syndrome.  Am J Med Genet A. 2014 Jun;164A(6):1400-10.

  • Academic Affiliations & Courses +
  • Activities & Honors +


    2005 Tourette Syndrome Association, Inc. Research Award
    2005 Obsessive-Compulsive Foundation Research Award
    2008 Cornelia de Lange Syndrome Foundation Research Award
  • Videos & Media +
  • Events +
  • Contact & Locations +


    Johns Hopkins Children's Center
    600 N. Wolfe Street
    Bloomberg Children's Center
    12th floor
    Baltimore, MD 21287
    Phone: 443-287-2291
    Appointment Phone: 410-955-5335
    Fax: 443-955-8691
    Location Map


    • Psychiatry and Behavioral Sciences - Child Psychiatry

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