I can offer you appointments in Dublin 2 at
29/30 Dame Street
To make an appointment you can use the following link which takes you to the online scheduler. It allows you to conveniently schedule an appointment that suits you, as well as change and cancel appointments:
For ADHD assessment only:
As ADHD should be approached from a multidisciplinary perspective, I work together with psychotherapist Zak Powers. You would usually see both of us for the assessment and development of a treatment plan, which can include medication as well as psychological and other approaches. You can easily make an appointment with me using the link above.