About Joshua Roffman, MD

Dr. Joshua Roffman is a board certified psychiatrist and investigator in the MGH Schizophrenia Clinical and Research Program (SCRP). He is Assistant Professor of Psychiatry at Harvard Medical School and directs the Brain Genomics Laboratory at MGH.

After graduating with high honors in neuroscience at Amherst College, Dr. Roffman completed his medical training at the University of Maryland, National Institutes of Health, and MGH-McLean Adult Psychiatry Residency Training Program. He was the recipient of early career awards from the Howard Hughes Medical Institute, National Institute of Mental Health (NIMH), and NARSAD/Brain & Behavior Research Foundation among others. His research is currently supported by NIMH, NARSAD, and MQ: Transforming Mental Health, where he was named one of the inaugural MQ Fellows.

Departments, Centers, & Programs:



Massachusetts General Hospital
55 Fruit Street
Boston, MA 02114
Phone: 617-724-1920
Fax: 617-726-4078

Medical Education

  • MD, University of Maryland School of Medicine
  • Residency, Massachusetts General Hospital

American Board Certifications

  • Psychiatry, American Board of Psychiatry and Neurology


Dr. Roffman's research merges brain imaging, genomics, and clinical trials to examine folic acid abnormalities in schizophrenia. His previous work has linked low-functioning genetic variants in the folate metabolic pathway to increased risk for negative symptoms, cognitive impairment, and related alterations in brain activation. Recently completed clinical trials conducted by Dr. Roffman and colleagues at the SCRP have identified modest protective effects of folic acid supplementation, especially among individuals who carry the previously identified genetic variants. Dr. Roffman is currently exploring how variation in folate-related genes, dietary folate intake, and exposure to folic acid during neurodevelopment influence MRI-based markers of schizophrenia vulnerability.

Dr. Roffman is also co-director of the Brain Genomics Superstruct Project, a unique collection of MRI scans and genomic data from >3,500 individuals. Using this resource, Dr. Roffman is examining how genes expressed early in brain development influence MRI markers that are abnormal in schizophrenia. The ultimate goal of this work is to identify biological pathways that may be targeted by folate-based interventions for individuals who are at increased genetic risk for schizophrenia.