About Us
Cassidy Psychology is a Clinical Psychology practice that provides counselling, psychotherapy and assessment services for people experiencing difficulties in their lives. Our practice is staffed by a team of highly qualified and experienced Clinical Psychologists that provide evidenced based treatments for mental health, wellbeing and personal development. We treat a full range of mental health conditions at the practice including depression and anxiety. We can also assist with other difficulties and stressors that may arise in life. Services are available to children, adolescents and adults.
An overview of our team and the services we provide can be found here.
Meet Our Team

Dr. Kellie Cassidy
Prinicpal Clinical Psychologist
Kellie completed a Bachelor of Science with Honours at Curtin University in 2001 and a Doctorate of Psychology (Clinical) at Murdoch University in 2007.

Ms Jenna Trainor
Psychologist
Jenna is a psychologist who is passionate about the role psychology can play in helping people bring about positive change and improve their social and emotional wellbeing.

Ms Karri Stewart
Clinical Psychologist
Karri completed a Bachelor of Arts with Honours in 2007 and a Master of Psychology (Clinical) in 2009 at the University of Western Australia. .

Ms Krystle Haley
Clinical Psychologist (Registrar)
Krystle is a passionate psychologist who enjoys working with all aspects of mental health and wellbeing.
Client Relationship Team
Barb Pinneri
Medical Receptionist
Barb is likely to be your first point of contact when you call or visit Cassidy Psychology. Barb is a friendly, welcoming person who will do what it takes to make your experience at Cassidy Psychology a positive one.
Barb looks forward to assisting you with any requests or queries you may have whether via email, phone or in person at the practice.
Ellie Millard
Medical Receptionist
Ellie is likely to be your first point of contact when you call or visit Cassidy Psychology. Ellie is a friendly, welcoming person who will do what it takes to make your experience at Cassidy Psychology a positive one.
Ellie looks forward to assisting you with any requests or queries you may have whether via email, phone or in person at the practice.
Our Philosophy
Our Values
Commitment
Determination
Gratitude
Respect
Excellence
Strength
Professionalism
Acceptance
Book Now
If you are interested in working together, send us an inquiry and we will get back to you as soon as we can!Recent Blog Posts
Help for parents with teens who self harm
In this Vlog our Clinical Psychologist Karri Stewart offers her advice and tips to help parents with teenagers who are self harming. We acknowledge that some people may find this content difficult and suggest you seek help if needed. Please contact us on...
What is Social Anxiety?
This week's vlog provides information about social anxiety and how to treat it.
What are phobias?
In this vlog Psychologist Jenna Trainor talks about Phobias and how to treat them.