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Mercia Wessels

Clinical Psychologist

BPsych(Hons) MPsych(Clinical) MAPS FCCLP

Mercia is a Clinical Psychologist with experience working with clients of various age groups, including adolescents, adults and older adults, as well as those from diverse cultural backgrounds. She has worked in not-for-profit and government settings, with a broad range of presenting problems, including depression, anxiety, trauma, and grief and loss.


Mercia has a special interest in working with chronic physical health conditions, including diabetes, cardiovascular disease, COPD, and progressive conditions, with significant experience working within a health setting, including in hospitals and chronic conditions.


She is passionate about supporting people where there is a psychological component to the self-management of their health, such as adjusting to a chronic condition diagnosis, or making and sustaining behaviour change for the benefit of their health.


Mercia has training and experience working with evidence-based interventions, including Cognitive Behavioural Therapy (CBT), Motivational Interviewing (MI), Acceptance and Commitment Therapy (ACT) and Mindfulness-Based interventions. She is a warm and engaging therapist who takes a person-centred approach, enabling clients to feel empowered throughout the therapeutic process.  


Mercia works at our Sippy Downs clinic. In order to book an appointment with Mercia, please call the Ochre Medical Centre on 07 5373 0700 or email

WorkCover referrals and NDIS clients welcome.




Mercia has completed a Bachelor of Psychology (1st Class Honours), and a Master of Psychology (Clinical). She holds general registration with the Psychology Board of Australia (PsyBA) with endorsement as a Clinical Psychologist and is a PsyBA-approved Supervisor. Mercia is a Member of the Australian Psychological Association (APS), and a Fellow of the APS College of Clinical Psychologists.