Gregory Q. Marsella is a physician by training and a board-certified psychiatrist, who received his B.A. at Harvard, his M.D. at the University of Pennsylvania, and his residency training in psychiatry at New York Hospital-Cornell Medical Center. He is a practicing psychiatrist and psychopharmacologist for the past 30+ years He also has founded, directed, and been primary investigator on a number of clinical trials, which you can view on his research biography.


Over the last decade, my focus has been directed towards researching treatments for a variety of the most common psychiatric disorders – Depression, Anxiety, PTSD, OCD, ADHD, and various Mood Disorders. My treatment philosophy is that pharmacological therapies for these conditions, should be aimed at an individual’s particular genetic makeup. In my experience, when this approach is used in combination with transcranial magnetic stimulation, you find patients achieving higher rates of remission for longer periods of time. In addition, I have found TMS to be effective in various neurological conditions, such as: chronic pain, post-stroke rehabilititation, TMJ, tinnitus, and more. TMS research is advancing exponetially. Every day new applications that can benefit both psychiatric and neurology patients become available. I stay current on all of the research happening with Psychopharmacology, Brain Stimulation, and Genetics.

Pharmacogenomics, Psychopharmacology, & Personalized Medicine

I offer in-house genetics testing, Genomind’s Genecept Assay and Assurex’s GeneSight Assay. They enable me to provide Personalized Psychiatry to my patients.

Contract & Grant-Based Medical Research & Clinical Trials

My research site, Da Vinci Research, performs Grant- based Medical Research and Contract Clinical Trials for Fortune 500 Pharmaceutical companies.

Neuromodulation & Transcranial Magnetic Stimulation

At my TMS Clinic, I offer Neuronetics TMS Therapy in Boca Raton & Miami and Brainsway rDTMS in Boca Raton.