Catherine’s areas of interest for children and young people are:

  • Obsessive Compulsive Disorder (OCD) including complex presentations

  • All forms of anxiety, particularly those presenting in childhood:

    • Specific Phobias

    • Generalised Anxiety and excessive worry

    • Separation Anxiety and school refusal

    • Panic symptoms

    • Social fears and avoidance

  • Bullying/Peer and Friendship Difficulties

  • Attachment and Relationship Issues

  • Post-Traumatic Stress Disorder (PTSD)

  • Sleep Problems

  • Stress Management including School stress

  • ADHD (Inattentive and/or Hyperactive)

  • Depression including management of self-harming behaviours

Catherine typically sees children and young people aged  6-25 years and is available on Mondays and Wednesdays

Dr Catherine Udy

Catherine has provided psychological services to children, adolescents and adults for over 15 years. Her experience includes work in public and private hospital inpatient and outpatient units, university clinics and Community Mental Health Teams. Previously, Catherine worked in a Child and Adolescent Mental Health Service providing psychological services to children, adolescents and their families. In her role as Clinical Psychologist, Catherine provides assessment, diagnosis and treatment for complex psychological issues that may present as emotional or behavioural concerns. She is endorsed to provide supervision to post graduate Clinical Psychology Interns and is an Honorary Associate of both Macquarie and Sydney Universities.

Catherine takes a comprehensive approach to understanding the nature and context of presenting issues. She values working collaboratively with parents and carers to bring about positive change within the young person’s world. She specialises in Cognitive Behavioural Therapy, Dialectical Behavioural Therapy and Mindfulness approaches. Staying abreast of research into evidence-based treatment approaches allows Catherine to incorporate new developments to enhance treatment outcomes for her clients. She has a strong interest in the treatment of anxiety disorders in children and adolescents, completing her Doctoral thesis in childhood anxiety.

Catherine’s special area of interest is Obsessive-Compulsive Disorder, or OCD. She enjoys empowering her clients through education and evidence-based strategies to overcome this life-impacting illness and take back control of their lives.

Catherine is also a published author in the Journal of Abnormal Child Psychology.

Udy, C.M., Newall, C., Broeren, S. & Hudson, J.L. (2013). Maternal expectancy versus objective measures of child skill: Evidence for absence of positive bias in mothers’ expectations of children with internalising disorders. Journal of Abnormal Child Psychology. doi:10.1007/s10802-013-9793-1

OCD Clinic @ Kidspace

For more details about OCD and its treatment, please see our OCD Clinic Page 

Contact and Booking Information


Existing Patients


Existing patients are welcome to use the online booking system by clicking the button below.

To contact Catherine's staff to change appointments or for enquiries:


P: 02 8287 1227



New Patients


For all patients that have not seen Catherine before, we ask that you assist us in completing the below. This basic information allows us to start the process and to track your referral. Once you have completed this our staff will contact you within 1-2 business days to discuss appointments. Please note, COVID restrictions have created overwhelming demand, and the current wait list for new patients to see Catherine is 3-4 months. Please take this into consideration when making your referral.  Priority will be given to those seeking treatment for OCD.