Our team

Mathias Keller
Principal Clinical Psychologist, BSc Psych (Hons), MPsych (Clinical), MACPA
Professional Practice Fellow, UWA School of Psychological Science

Please note: Mathias has a waitlist of 3-6 months

Mathias is a Clinical Psychologist with over 15 years experience who has worked in the areas of complex mental health and forensic settings.  He has extensive experience working with children, adolescents and families, and he provides comprehensive assessment and treatment for a range of mental health difficulties, including anxiety, depression, anger, trauma, stress, and relational problems.  He is empathetic and warm, and he works seamlessly across a range for psychological models to help clients make the most out of therapy.

Mathias completed his postgraduate degrees at the University of Western Australia, and has been fully registered as a Clinical Psychologist since 2005.  He works as a Senior Clinical Psychologist at Perth Children’s Hospital, and he has managed and trained teams of psychologists and health professionals.  He is an accredited supervisor with the Psychology Board of Australia, and he provides clinical supervision to university students and other psychologists because he is a passionate about fostering the next generation of Clinical Psychologists in Perth.  He is a Professional Practice Fellow with the UWA School of Psychological Science, which recognises the important teaching-related services (supervision) he provides to the School.

Mathias sees patients on Wednesdays.


Stephen Roberts
Principal Clinical Psychologist, BSc Psych (Hons), MPsych (Clinical)
Member of the International OCD Foundation (IOCDF)

Stephen is a Clinical Psychologist with 19 years experience in areas of complex mental health across government and private practice. He has substantial experience working with adults, adolescents, and children across a diverse range of mental health issues, including PTSD, Depression, Anxiety, and OCD.

Before joining Shenton Psychology, Stephen was Team Leader at the Perth OCD Clinic.  He has undertaken OCD specialist training with the Massachusetts General Hospital and is a member of the International OCD Foundation (IOCDF).  Stephen has a high degree of skill and knowledge working with OCD having extensively treated OCD for many years. Stephen co-authored a study of Clinical Intervention for OCD published in the Journal of Anxiety Disorders. 

Stephen is an accredited primary and secondary supervision with the Psychology Board of Australia, and provides supervision to a number of registered psychologists.  

Stephen sees patients on Wednesday and Fridays.


Dr Jacinta Macintyre
Senior Clinical Psychologist, BA Psych (Hons), DPsych (Clinical)

Please note: Jacinta sees patients 16 years and older

Jacinta is a Clinical Psychologist with over a decade of clinical training and experience. She has specialised with youth who have experienced complex mental health and behavioural difficulties in public mental health and forensic systems. Jacinta is passionate about working with young people as they navigate the complexities associated with this developmental stage. She is also very experienced in helping young people and adults with issues relating to childhood or recent traumas which may also present as mental health issues such as anxiety, depression, post-traumatic stress disorder, relationship problems, difficulties with emotional regulation and stress. Furthermore, Jacinta has a special interest in working with perinatal mental health issues including the adjustment to early parenting and birth trauma. 

With a focus on the therapeutic relationship, Jacinta works collaboratively with her clients to gain a deeper understanding of their difficulties, develop new skills to break unhelpful patterns that continue to show up, and to ultimately create the rich and meaningful lives they desire. She uses a trauma informed and attachment focused approach to provide a range of evidence-based treatments, including Schema Therapy, Cognitive Behaviour Therapy, Acceptance and Commitment Therapy, Mindfulness-based Therapy, Dialectical Behaviour Therapy, and Eye Movement Desensitisation and Reprocessing Therapy (EMDR).

Jacinta sees patients on Thursdays and Saturdays.