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Marco A Grados, M.D., M.P.H.

Headshot of Marco A Grados
  • Clinical Director
  • Associate Professor of Psychiatry and Behavioral Sciences

Languages: English, Spanish


Adult Psychiatry, Anxiety Disorders, Attention Deficit Disorder (ADD), Attention Deficit Hyperactivity Disorder (ADHD), Child and Adolescent Psychiatry, Child Development and Behavioral Health, Child Psychiatry, Neurodevelopmental Disorders, Obsessive-Compulsive Disorders, Psychiatry, Psychiatry and Behavioral Sciences more

Research Interests

Obsessive-Compulsive Disorder, Tourette Syndrome, Genetics more

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The Johns Hopkins Hospital (Main Entrance)

Appointment Phone: 410-955-5335
1800 Orleans St.
The Charlotte R. Bloomberg Children's Center Building
Baltimore, MD 21287 map
Phone: 443-287-2291 | Fax: 410-955-8691



  • Clinical Director
  • Associate Professor of Psychiatry and Behavioral Sciences

Departments / Divisions

Centers & Institutes



  • MD; Universidad Peruana Cayetano Heredia Facultad de Medicina Alberto Hurtado (1990)


  • Psychiatry; Henry Ford Hospital (1994)
  • Child Psychiatry; Johns Hopkins University School of Medicine (1996)

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.

Activities & Honors


  • Research Award, Tourette Syndrome Association, Inc., 2005
  • Research Award, Obsessive-Compulsive Foundation, 2005
  • Research Award, Cornelia de Lange Syndrome Foundation, 2008

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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