Petros Lekkos is a Consultant Adult Psychiatrist and a CAT practitioner. He has extensive clinical experience in the United Kingdom and Greece. He graduated from the Aristotle University of Thessaloniki Medical School and completed his specialist training in Adult Psychiatry at the Royal Free and UCL (London). He is a Member of the Royal College of Psychiatrists (MRCPsych) and holds an MSc in Psychiatric Research (UCL), a Certificate of Completion of Training (CCT) in General Adult Psychiatry, and a postgraduate qualification in Cognitive Analytic Therapy (CAT).

Since 2023, he is the Clinical Lead of the Early Intervention in Psychosis Unit – Pireos 33 (University Mental Health Research Institute in collaboration with the National and Kapodistrian University of Athens) and teaches on the MSc programme in Early Intervention in Psychosis at the National and Kapodistrian University of Athens Medical School.