Psychologists are scientists who deal with human behavior and mental-cognitive functions. They may specialize in individual areas such as: diagnosis and treatment of mental disorders (clinical psychology), issues related to education (school psychology), children's social development (social psychology) and professional life e.g. professional training, personnel selection, professional orientation (work psychology).

Psychology is legally protected as a profession in Greece and its practice requires the relevant license from the Ministry of Health.
According to the Greek legislation (Article 1 of Law 991/79), "In the practice of their profession psychologists investigate and evaluate human personality and behavior and work with the established principles and methods of the Science of Psychology in order to make good use of and improve them."
To date (year 2022) the Greek law does not provide for areas of specialization in Psychology. So even if you have obtained a specialty, (for example, health psychologist, clinical psychologist, school psychology, counseling psychology) you cannot officially state yourself as such.
We should also clarify that the Psychology degree and the license for practicing psychology do not involve training in psychotherapy. So a licensed psychologist is likely to have no training in practicing psychotherapy with patients.
Be that as it may, the psychologist is neither a doctor nor a psychiatrist and does not administer drugs.

Panagiota Kypraiou MSc Health Psychology, MBPsS - Body & Gestalt Psychotherapist (ECP) - Body Psychotherapy Supervisor - Parents' Education Groups Coordinator https://www.psychotherapeia.net.gr