Meet The Core Psychology Team

All of our team hold Masters of Psychology (Clinical Psychology) degrees. Our Psychologists are highly trained and experienced in treating adults and adolescents with a wide range of presentations including: anxiety, depression, stress and burnout, self-esteem issues, sleep disorders, bereavement, relationship issues and trauma. Members of our team also specialise in working with children and their parents.

Tracey Feltham


Director & Principal Clinical Psychologist

BA (Psychology), MA (Psychology), MPsy (ClinPsy)

Special interest in:

  • Supervision & Mentoring
  • Accredited Supervisor with the NSW Psychologists Registration Board

I opened Core Psychology in 2007 with the vision of creating a warm, and welcoming practice where our clients can access expert help with highly qualified and trained Clinical Psychologists. With over two decades of experience working as a Clinical Psychologist within the public health system, University research settings, and in private practice I am now specialising in supervising and mentoring our highly qualified team. I am passionate about helping the next generation of Clinical Psychologists grow their expertise so that our clients can not only get well and stay well, but live a life more fulfilling than they could have imagined.

I am no longer taking on new clients as I focus on the supervision and training of our fantastic team, implementing Feedback Informed Treatment so we can track the gains our clients are making, and developing ways to improve the way we deliver treatment.

Courtney Smith


Clinical Psychologist

M.Psy (Clin Psy), B. Sc. Honours (Psy)

Special interest in:

  • Anxiety and Mood Disorders
  • Long-standing relationship issues with partner, family or friends
  • Eating Disorders
  • Psychological approaches to weight concerns
  • Body Image Disorders

I obtained my Master of Clinical Psychology from the University of Southern Queensland and have worked in a variety of settings including government agencies, private practice and as a school counsellor. I am passionate about helping people improve their wellbeing and psychological health. I utilise strategies based in Cognitive Behavioural Therapy (CBT), Acceptance and Commitment Therapy (ACT) and Dialectical Behaviour Therapy (DBT) and have undergone extensive training in Schema Therapy.

I have a special interest in working with people with a complex mix of issues within their relationships or with themselves. This includes unhealthy relationships with food and I work with my clients to help them understand the psychological aspects and causes of their eating, hunger or body image difficulties, and look at how we can make lasting changes to interrupt these patterns.

Working in partnership with my clients we aim to build self-awareness, enhance confidence and bring back a sense of direction on the road to achieving long term fulfillment.

As well as being on the team at Core Psychology I run group programs at the Northside Clinic in the Eating Disorder Unit.

Ashling Isik


Clinical Psychology Registrar

M.ClinPsych, B.Psych (Honours)

Special interest in:

  • Anxiety and mood disorders
  • Post Traumatic Stress Disorder
  • Adolescent Mental Health
  • Transitioning from high school into early adulthood
  • Attention Deficit Hyperactivity Disorder (ADHD)
  • Gender Identity & LGBTQIA+ issues

I hold a Masters degree in Clinical Psychology from the University of Technology and have worked in non-government agencies and university and community health settings, in both clinical and research roles, which has given me extensive experience in the assessment and treatment of adults, adolescents and families.

I have a supportive and non-judgemental approach and enjoy working collaboratively with clients to improve psychological health and wellbeing. I use various therapeutic models including Cognitive Behavioural Therapy (CBT), Acceptance and Commitment Therapy (ACT) and Dialectical Behaviour Therapy (DBT). My aim in treatment is to equip my clients with relevant resources, skills and information, and provide guidance and support through difficult periods of life.

In addition to my clinical work in private practice I hold a research position at the University of Sydney and volunteer my time in a managerial role with the Australian Refugee Volunteers.



Clinical Psychology Registrar

BPsych (Hons), MPsych (Clinical)

Special interest in:

  • ¬†Adult & Adolescent Mental Health (mood disorder, Bipolar, Psychosis)
  • Attention Deficit Hyperactivity Disorder

I obtained a Master of Clinical Psychology from the University of Technology. I have experience assessing and treating adults, children and families in University and community settings. I work with a range of presentations including anxiety, depression and other mood disorders, post-traumatic stress disorder and attention deficit and hyperactivity disorder.

I am passionate about providing warm and empathic support to clients using a variety of evidence based approaches, including Cognitive Behavioural Therapy (CBT), Acceptance and Commitment Therapy (ACT) and Dialectical Behaviour Therapy (DBT). I have a particular interest in working with young adults as they manage the transition into adulthood. In addition to providing individual therapy in private practice I conduct psychometric assessments at a specialised centre.

Catherine Gaussen


Clinical Psychology Registrar

M. Clin Psych, B. Psych (Honours)

Special interest in:

  • Self-Esteem Issues
  • Anxiety and Mood Disorders
  • Child Emotional and Behavioural Disorders
  • Parent-Child Attachment Work
  • Complex Trauma

I completed a Master of Clinical Psychology at the University of Technology. I am committed to helping people engage fully in a valued and meaningful life. I take great care in providing an approachable and flexible therapeutic experience that is tailored to suit the unique needs of each of my clients.

I have a particular interest in working with young people and families where there are presentations of anxiety, behavioural difficulties and ADHD. I also have a strong interest in working with individuals experiencing difficulties with emotion regulation, self-esteem, and maintaining stable, enduring relationships.

I am compassionate, collaborative and non-judgmental. I use evidence-based assessment and intervention strategies to help clients gain an in-depth understanding of their difficulties, and to develop new skills so that they can lead fulfilling lives.

I compliment my work in private practice by conducting group therapy at the Northside Clinic.

Emma Champion


Practice Manager

BA (Psych) LLB

After a career in the legal profession I have worked in managerial positions in the mental health sector for 10 years. I joined Core Psychology in 2014 and am responsible for the general management of the practice, the implementation of strategies to improve the care and experiences of our clients, as well as business development.


Administrative Assistant

B.Advanced Sc. (Psych Honours Class 1), MPsych(Forensic)/PHD candidate


Administrative Assistant

B.Psych (Honours)