Dr Marie O’Neill
D Clin Psy, C Psychol


I qualified as a clinical psychologist in 2001 and am now based in Cirencester, Gloucestershire. I provide a confidential assessment and therapy service to adults and young people aged 14+ and most of my work is now online, which offers the benefit of increased flexibility.

I obtained a degree in Psychology and Law in 1992 and then worked for several years within the Probation Service, at Broadmoor Special Hospital and at St Thomas’ Hospital, London. During which time I held both clinical and research posts.

In 2001 I obtained the Doctorate in Clinical Psychology from University College London (UCL), when I specialised in work with teenage boys in secure accommodation and in care. I subsequently worked in NHS and private adult and child services in Gloucestershire, Wiltshire and Oxfordshire.

Between 2012 and 2020 I worked for the Ministry of Defence (MOD), providing psychological therapy to serving members of the army, navy and air force, where I developed specialist skills in assessment, individual and group therapy for PTSD. Alongside this work with the armed forces, I also worked with veterans experiencing symptoms of post traumatic stress, anxiety and depression.

In 2021 I returned to work part-time with the NHS, where I am the psychology lead developing Trust colleague health and wellbeing support.

I am an HCPC registered clinical psychologist and chartered by the British Psychological Society (BPS). I hold professional liability insurance and an enhanced DBS check.

Dr Marie O’Neill
D Clin Psy, C Psychol

What is a Clinical Psychologist?

A clinical psychologist integrates science, theory and clinical knowledge to help people who are struggling with their mental health;

A clinical psychologist has completed an undergraduate degree in psychology and a specialist doctoral training in clinical psychology. This training takes at least 6 years and includes placements working with people of all ages and with a wide range of emotional and behavioural difficulties;

A clinical psychologist is trained in a broad range of psychological theories and models;

A clinical psychologist always looks at the research and evidence base to guide the way they work;

A clinical psychologist works in collaboration with the client to find a way to cope with psychological distress;

A clinical psychologist develops a unique formulation of your difficulties, which guides therapy and is more flexible than “one size fits all” self-help treatments;

A clinical psychologist promotes well-being and personal development;

A clinical psychologist in the UK does not prescribe medication.