Dr Carla Matias
Clinical Psychologist

I am Dr Carla Matias, a Chartered Clinical Psychologist registered with the Health and Care Professions Council and The British Psychological Society.


I have over 10 years clinical experience of working with a

variety of client groups presenting with a wide range of mental health difficulties, both in the private sector and in the NHS. I have extensive experience of several evidence-based psychological therapies scientifically proven to promote positive change in common mental health-related problems including anxiety, depression, low-self-esteem, adjusting to trauma and relationship breakdown. I also have a strong research background in the fields of child and adolescent mental health, parenting, attachment, and the understanding of mental health difficulties along a continuum of severity.


Besides my private practice, I have been working in an NHS inpatient rehabilitation service for the past 2years, providing highly specialist psychological input to adults presenting with chronic and complex mental health difficulties. Prior to this, I worked as a Specialist Clinical Psychologist in an NHS community service providing assessment and treatment to young adults presenting with first episode of psychosis and a range of co-morbidities.


My approach to psychological therapy is integrative, tailoring the most effective treatments to each client’s

specific difficulties in a safe, empathic and nonjudgmental way. Main therapeutic models used include CBT, Mindfulness, Compassion-Focussed Therapy, and Schema Therapy. I also draw upon other models such as ACT and DBT.


I am fluent in English, Spanish and Portuguese.


Professional Status

• Chartered Clinical Psychologist (British Psychological Society)

• Registered Clinical Psychologist (Health and Care Professions Council)

• Professional Indemnity Insurance Cover


Qualifications in Psychology & CBT

• Doctorate in Clinical Psychology (Royal Holloway University London)

• PhD in Child & Adolescent Psychiatry (King’s College London)

• MPhil in Criminology (Cambridge University)

• Licence Degree (Licenciatura) in Psychology (Minho University, Portugal)

• Cognitive Behavioural Therapy for Psychosis (CBTp) Top-Up training (UCL)

• Behavioural Family Intervention for Psychosis (St Georges NHS Foundation Trust)

Peer-Reviewed Publications (Selection)

Kingston, J., Lassman, F., Matias, C., & Ellet, L. (submitted) ‘Mindfulness and Nonclinical Paranoia: A Cross-sectional, Longitudinal and Experimental Analysis’, Mindfulness.


Moreira, P., Dias, A. S., Matias, C., Castro, J., A. Gaspar, T., & Oliveira, J. (2018) ‘School effects on students' engagement with school: Academic performance moderates the effect of school support for learning on students' engagement’. Learning & Individual Differences, 67, 67-77.


Matias, C., O’Connor, T. G., Futh, A., & Scott, S. (2014). ‘Observational Attachment Theory-based Parenting Measures Predict Children's Attachment Narratives Independently from Social Learning Theory based Measures’, Attachment & Human Development, 16(1), 77-92.

O'Connor, T. G., Matias, C., Futh, A., Tantam, G. & Scott, S. (2013) ‘Social Learning Theory Parenting Intervention Promotes Attachment-Based Caregiving in Young Children: Randomized Clinical Trial’. Journal of Clinical Child Psychology 42(3), 358– 370.


Scott, S., O’Connor, T., Futh, A., Matias, C., Doolan, M., & Price, J. (2010) ‘Impact of a parenting program in a high-risk, multi-ethnic community: The PALS trial’. Journal of Child Psychology and Psychiatry 51(12), 1331-1341.


If you would like to contact Carla,

please call 0208 935 5825

or email drcassell@surreypsych.com

Clinic Address

Castle House 

Park Road 




Clinic Contacts

Dr Emilie Cassell


Dr Louise Oliver

07795 925 631

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