Dr. Daniel Geller, MD

Child & Adolescent Psychiatry  |  
Male  |  
Age 64
Insurances AcceptedSave
Dr. Daniel Geller, MD
As Director of the Massachusetts General Hospital (MGH) Pediatric Obsessive-Compulsive Disorder (OCD) Clinical and Research Program, I have an solid basis on which to provide responsible clinical care. My research career has been devoted to the study of pediatric OCD and related disorders, their phenotypes, clinical correlates, familial patterns of inheritance, and treatment. In recognition of my expertise in this area, I was selected by the American Academy of Child and Adolescent Psychiatry to author its Practice Parameters for the Assessment and Treatment of OCD in Children and Adolescents, published in 2012. I received a career development award (NIMH 5K08 MH01481) to conduct a family genetic study of pediatric OCD and subsequently assembled one of the largest cohorts of subjects ever studied, recruiting over 500 participants and publishing extensively on my findings. I have been a site investigator for numerous industry and investigator-initiated drug trials since 1991 for pediatric OCD, Tourette's syndrome, attention deficit hyperactivity disorder (ADHD), anxiety and depression, including original registration trials for pediatric OCD. I have also been PI or Co-I in a number of NIH-funded grants, including the OCD Collaborative Genetics study. As such, I have administered all facets of care collaborating effectively with my colleagues and disseminating original work in peer-reviewed publications. Most recently, I was the PI for an NIH-funded grant (R01 MH093402), a double-blind randomized controlled trial investigating the pharmacological use of d-cycloserine prior to standard cognitive behavioral therapy to enhance fear extinction learning. In addition, I was closely involved with nearly all multi-site placebo-controlled randomized FDA registration trials for the pharmacological treatment of OCD in youth, including sertraline, paroxetine and fluoxetine, as well as trials for other disorders that are frequently comorbid (e.g., Tourette's syndrome and ADHD). My meta-analysis was the first to gather and analyze the collected data, as well as to determine effect sizes and safety profiles for these medications. This lead to the current practice guidelines promulgated by the American Academy of Child and Adolescent Psychiatry, of which I am the lead author. Using the previous work, I was able to investigate the mediators and moderators of treatment outcomes, especially the impact of comorbid psychopathology, familial loading, age of onset, and adverse perinatal factors. Industry sponsored trials are limited by numerous exclusion criteria that do not reflect clinical populations. Therefore a realistic appraisal of effectiveness was important for the field of child psychiatry. The hypothesis that some cases of OCD in youth might follow group A beta-hemolytic streptococcal infection (a variant of Sydenham's chorea) by way of a post-infectious autoimmune process (PANDAS), led to studies funded by the NINDS as part of the Tourette Syndrome Study Group. I was the PI of the MGH site that prospectively collected case-control pairs and followed them for two years naturalistically in order to examine the validity of this hypothesis. PANDAS remains highly controversial, but there is mounting evidence that neuro-immune processes are involved in an array of psychiatric illness. As PI of a multi-site genetics study evaluating trios in families with an early-onset proband, I have been increasingly involved in the acquisition of samples for the OCD Genetics Association Study and the International OCD Genetics Consortium, which has recently become the OCD/TS subgroup of the Psychiatric Genetics Consortium (PGC). My expertise in phenotyping has been an important component in these groups' work.

185 Cambridge St # 2200

Boston, MA 02114

Contact Information

(617) 724-5141

Dr. Daniel Geller, MD

Dr. Daniel Geller, MD

Accepted insurance

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Care Philosophy

Dr. Daniel Geller founded the Pediatric Obsessive Compulsive Disorder (OCD) Program in 1992. At Massachusetts General Hospital (MGH), he has collected and characterized the largest genetic sample ever assembled of children and adolescents with OCD and Tic disorders. Focused on individual patient attention and long term follow-up, Dr. Geller brings his lifetime of experience in both pediatrics and psychiatry to custom-tailor a successful approach to each patient's care.
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Dr. Geller's Experience

Dr. Geller's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Child & Adolescent Psychiatry
  • Board certified in Child & Adolescent Psychiatry, Pediatrics and Psychiatry
  • No malpractice claims found
  • No sanctions found
  • No board actions found


  • Child & Adolescent Psychiatry
  • Adult & Adolescent Psychiatry
  • Developmental-Behavioral Pediatrics
  • Pediatrics

Board Certifications

  • Child & Adolescent Psychiatry
    Accredited by: American Board of Psychiatry & Neurology*
  • Pediatrics
    Accredited by: American Board of Pediatrics*
  • Psychiatry
    Accredited by: American Board of Psychiatry & Neurology*

Conditions Treated

  • ADHD and-or ADD
  • Anxiety
  • Autism
  • Bipolar Disorder
  • Developmental and Learning Disorders
  • Emotional Disturbances of Childhood and Adolescence
  • Impulse Control Disorders
  • Major Depressive Disorder
  • Nondependent Drug and Alcohol Abuse
  • Nondependent Marijuana Abuse
  • Obsessive-Compulsive Disorder (OCD)
  • Phobia
  • Psychiatric Diseases
  • Psychosis Due to Mental Illness


  • Cognitive Behavioral Therapy (CBT)
  • Psychopharmacologic Treatment
  • Psychotherapy and Psychophysiological Therapy (incl. Biofeedback)

Background Check

0 Malpractice Claims

No malpractice history found for Massachusetts.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Flinders University / Flinders School Of Medicine
    Undergraduate School | Graduated
  • University Of Adelaide Medical School
    Medical School | Graduated 1978
  • Flinders Medical Centre
    Internship Hospital | Completed 1978
  • Flinders Medical Centre
    Residency Hospital | Completed 1980
  • Princess Margaret Hospital For Children
    Residency Hospital | Completed 1987
  • Stanford University
    Residency Hospital | Completed 1992
  • Harvard Medical School
    Fellowship Hospital | Completed 1994
  • Johns Hopkins University / School Of Medicine
    Fellowship Hospital | Completed 1989
  • Stanford University
    Fellowship Hospital | Completed 1992

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Geller has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Geller does not have any memberships or affiliations listed. If you are Dr. Geller and would like to add memberships or affiliations, please update your profile.

Dr. Geller's Reviews

Likelihood of recommending Dr. Geller to family and friends
based on 13 total reviews (2 with comments)
Dr. Geller's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    10 to 15 minutes
Patient Comments (2)
in North Reading, MA |
Dr. Gellar is one of the top OCD doctors in the country. My child had suffered tremendously from OCD, anxiety and depression. We took him to numerous doctors. Nobody had an answer or a treatment plan, and worse, didn't really seem to care. Dr. Gellar is a God send. Having him on our side is something that is hard for me to express in writing. He saved our son and also us, as parents. He is a brilliant doctor and a kind man. He is easy to reach and has even returned calls on weekends.
in Newton, MA |
I definitely would not recommend Dr Geller. We waited almost a year for an appointment for our son who has serious OCD. Even though we told Dr Geller our son had a problem with addiction, he prescribed a benzodiazepine. When asked why he wouldn't tell us. He instead told us if we didn't like it that he would be happy to give us the name of another Dr. The Next Dr our son saw said he would never prescribe a benzodiazepine to an adolescent with an addiction history.
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  • We do not accept health insurance

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Hospitals where Dr. Geller has admitting privileges

Massachusetts General Hospital
55 Fruit St
Boston, MA 02114
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