Marina Koshman Registered Psychologist Book an Appointment Other Services Offered Marina Koshman – Registered Psychologist (Engadine)Appointments available from mid- June onwards. Please call (02) 7256 7070 or book online. Marina is a compassionate and curious Registered Psychologist working at our Engadine Psychology Clinic. Marina’s goal is to alleviate those suffering from psychological distress and to enable…