Diarmaid is a qualified Clinical Psychologist who obtained a Doctorate in Clinical Psychology in 2014 at Lancaster University, UK. Diarmaid’s Doctorate in Clinical Psychology is fully validated by the Department of Health in Ireland under Directive 2005/36/EC and Diarmaid is a Chartered member of the Psychological Society of Ireland.

Diarmaid has worked with a range of teams within the Health Service Executive, including a Rehabilitation Mental Health Service, an Adult Mental Health Service and most recently as a Senior Clinical Psychologist with a Children’s Disability Network Team. Conducting autism assessments for children as part of a multidisciplinary team was central to Diarmaid's work in the latter role in addition to therapy and intervention with autistic adolescents and their families.

Diarmaid is also highly experienced at administering multidisciplinary autism assessments within the private sector; he worked for two separate private services prior to setting up his own service in 2022.

Diarmaid draws on a range of models during therapy including Cognitive Behaviour Therapy (CBT), Cognitive Analytic Therapy (CAT), Dialectical Behaviour Therapy (DBT), Compassion Focussed Therapy (CFT) and Behaviour Models.

Katherine oversees all of the administrative, accounting and business operations aspects of our practice.

Katherine has a Degree in Personnel Management from the National College of Ireland and has over 15 years’ experience in Human Resources, Learning & Development, Project Management and Administrative roles.

She has worked previously in the IT Services and Consulting industry and for one of the country’s largest multinational companies.

Katherine has a strong interest for the clinical work we provide at Hawthorn Psychology and endeavours to provide the best possible service to all our clients.