About Dan Geller, MD

Dr. Daniel Geller founded the Pediatric Obsessive Compulsive Disorder (OCD) Program in 1992. At Massachusetts General Hospital (MGH), he has collected and characterized a large sample of children and adolescents with OCD and Tic disorders. Among his research efforts is collaborative work with other leading universities and the National Institute of Mental Health for the study of genetics of psychiatric disorders. Dr. Geller is a founding member of the International OCD Genetics Consortium, collaborating with senior scientists from many countries, with the goal of identifying genes responsible for OCD and delineating mechanisms by which genetic vulnerabilities are translated into clinical symptoms.

Dr. Geller is the recipient of several honors and awards in medicine and developmental pediatrics, notably from the American Academy of Child and Adolescent Psychiatry, Obsessive-Compulsive Foundation and Tourette's Syndrome Association. He is a member of the Society of Development Pediatrics and several expert panels, including the American Academy of Child and Adolescent Psychiatry and the National Institute for Clinical Excellence of the Royal College of Psychiatrists, London. He completed his training as a general and developmental pediatrician in Australia and then trained as resident and chief resident in general and child and adolescent psychiatry at Johns Hopkins and Stanford medical schools.

Dr. Geller is triple-boarded in Pediatrics, General Psychiatry and Child Psychiatry. In 1992, he was recruited to McLean and Massachusetts General Hospitals where the Pediatric OCD Program was established. Since 2003 he has worked at MGH full time in the Pediatric Psychopharmacology Program and the Psychiatric Neurodevelopmental Genetics Unit.

Clinical Interests:



Mass General Psychiatry: Obsessive-Compulsive Disorder & Related Disorders Program
185 Cambridge St.
Simches Research Center
Suite 2000
Boston, MA 02114
Phone: 617-726-6766

Mass General Child & Adolescent Psychiatry
55 Fruit St.
Yawkey Center for Outpatient Care
Suite 6A
Boston, MA 02114
Phone: 617-724-5600

Medical Education

  • MD, University of Adelaide
  • Residency, Child Development Centre
  • Residency, Flinders Medical Centre
  • Residency, Princess Margaret Hospital for Children
  • Residency, Princess Margaret Hospital for Children
  • Residency, Royal Children's & Women's Hospital
  • Residency, Stanford University Medical Center
  • Fellowship, Johns Hopkins Hospital***

American Board Certifications

  • Child & Adolescent Psychiatry, American Board of Psychiatry and Neurology
  • Pediatrics, American Board of Pediatrics
  • Psychiatry, American Board of Psychiatry and Neurology

Accepted Insurance Plans

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Dr Geller has explored phenotypic expression, treatment response, outcome and etiological causes of early-onset OCD.


    1. Geller D, Biederman J, Faraone S, Cradock K, Hagermoser L, Zaman N, Frazier J, Coffey B, Spencer T. Attention Deficit Hyperactivity Disorder in Children and Adolescents with Obsessive Compulsive Disorder: Fact or Artifact? Journal of the American Academy of Child and Adolescent Psychiatry 2002; 41(1): 52-58.
    2. Geller DA, Biederman J, Stewart SE, Mullin B, Martin A, Spencer T, Faraone SV. Which SRI? A Meta-analysis of Pharmacotherapy Trials in Pediatric Obsessive Compulsive Disorder. American Journal of Psychiatry 2003; 160(11): 1919-28.
    3. Geller D, Petty C, Vivas F, Johnson J, Pauls D, and Biederman J. Further evidence for co-segregation between pediatric Obsessive Compulsive Disorder and Attention Deficit Hyperactivity Disorder: a familial risk analysis. Biol Psychiatry 2007; 61(12): 1388-394.

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