Dr Theodoros Koutsomitros is a Consultant Psychiatrist and certified Psychotherapist from Greece. He has specialized in Adult Psychiatry at University Clinics in London (UCL) and Thessaloniki (AUTH) and has subspecialized in Transcranial Magnetic Stimulation (TMS) in the Netherlands and the United States, at the universities of Maastricht and Harvard. He is currently a PhD researcher at University of Maastricht in the Netherlands.

Along with his specialization in pioneering treatment of TMS, he has specialized in 9 different psychotherapeutic approaches (CAT,CBT, GPM,ISTDP, Existential, Family-Systemic, Group and Psychodynamic Psychotherapy and Psychoanalysis). Since 2025 he is the co-chair of Psychotherapy Section of European Psychiatric Association (EPA).

He maintains a private practice with a team of specialized psychiatrists and psychologists at SynaΨe : the European Medical Institute of Psychotherapy & Brain Stimulation. He is the founder and medical director of the Greek rTMS clinic, the largest rTMS clinic in Greece.