Ms Steph Sier

BArts(Psych), MSW, MAASW

Senior Clinician and Therapist / Mental Health Accredited Social Worker


Steph is a senior clinician and therapist at Wellington Street Psychology, and a mental health accredited social worker. She has an extensive background working in inpatient and outpatient mental health programs and helps guide and support the clinical team at Wellington Street. 

Steph is an LGBTQIAP+ affirmative therapist. She works across various psychological difficulties (including depression, anxiety, PTSD/trauma, personality disorders, self-esteem issues, and many others) and uses various psychological therapies (including ACT, CBT, DBT, and mindfulness). Steph completed her undergraduate degree in psychology, and master’s in social work, at Deakin university. After extensive work in mental health, she obtained mental health accreditation.


Bachelor of Arts majoring in Psychology
Master of Social Work


Steph works on Tuesdays and Thursdays. The cost of a 50-minute consultation with Steph is $195.00. If referred by a G.P. along with a Mental Health Care Plan, or by a psychiatrist, you will receive a rebate of $77.80 per session via Medicare. Up to 20 Medicare-rebated sessions can be claimed per calendar year