Taking the first step towards seeking help and support for yourself or someone you care about is an act of courage - and we’re right there with you.
Welcome to Aperture Psychology - A Private Psychology Clinic in Sydney, NSW
The change we want to make:
Our Vision
Use scientific understanding to improve mental health and unlock human potential
How we make it happen:
Our Mission
Aperture Psychology is a private psychology clinic in Sydney, NSW, dedicated to supporting adults, teens, and children through treatments and cognitive and diagnostic assessments. We provide evidence-based psychological services that empower individuals to gain deeper insight, develop their capabilities, and create meaningful change in their lives through compassion, expertise, and collaborative partnership.
The belief that guides us:
Our Values
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Wisdom first
We pursue deep understanding of the human mind and share knowledge that helps transform lives.
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Human dignity
We honour the inherent worth and potential in every person.
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Skillful compassion
We combine professional excellence with genuine care for the people we serve.
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Meaningful growth
We facilitate lasting positive change for our clients through insight and action.
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Collaborative Spirit
We work together as a team and with other health professionals to amplify our positive impact on individuals and communities.
Our Story
How did we get here?
25+ years ago, it all started with a simple idea: two people with a shared vision for providing psychological care to their local community in Sydney.
We wanted to use our expertise in the field to build a place where anyone experiencing mental health challenges felt comfortable and safe coming to us for guidance and relief.
From the beginning, the practice offered support for anxiety, depression, and couples in distress, and adopted emerging evidence-based approaches for the treatment of psychotic disorders and bipolar disorder.
As the team grew, so did our desire to support people facing mental health challenges, as well as individuals and families navigating developmental conditions and cognitive difficulties.
From Past to Present
Now, in 2025, as we step into the next chapter as Aperture Psychology, we’re building on our experience, values, and passion for helping people - expanding our services across two practices in Randwick and Marrickville, to make psychological care and mental health education more accessible.
Meet the Practice Directors
Hi, I’m Peter
For me, psychology has always been about connection - listening to people’s stories, really understanding what they are going through, and working together to address the core of their concerns. It's personally rewarding to see the transformative impact the right therapy can have on someone’s life. As the Director of Clinical Psychology & Education at Aperture Psychology, I’m proud to lead a team of highly skilled clinical psychologists who share my passion for delivering clinically proven treatments that empower people to take control of their mental health.
When I’m not in the practice you’ll likely find me engaged in physical activities (I’m an avid surfer!), enjoying a good laugh with the family, or diving into the surreal world of a David Lynch film - because mental health is all about maintaining balance.
Peter Walker
Director of Clinical Psychology & Education
BSc(Hons), MPsych(Clin)
Location: Peter works at both the Randwick & Marrickville practices
Hi, I’m Sophie
If you were ever curious about how the brain influences the way we think, feel, or act - welcome to my world. I’ve always been fascinated by the connection between brain function and behaviour and this made stepping into my role as Director of Neuropsychology and Operations at Aperture Psychology feel like a natural progression. Here, my team and I take a research-driven approach to help individuals and families get clarity on and make sense of cognitive and behavioural challenges.
I love all things natural history (dinosaurs and David Attenborough!) and ancient history. In my spare time, I hang out with the family and occasionally indulge in my love of zombie movies.
Dr. Sophie Li
Director of Neuropsychology and Operations
BPsych(Hons), MPsych(Clin), PhD
Location: Sophie works at both the Randwick & Marrickville practices
Meet Our Practice Support Team
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Toni Gumley
PRACTICE MANAGER
Location: Randwick
Toni is the warm and welcoming human you’ll see behind the front desk at our Randwick practice (or hear when you call us).
Her superpower - besides making sure everything’s running smoothly at the practice? Her ability to matchclients with the right clinicians.
After over 10 years working with us, she has a wealth of knowledge and is always happy to answer your questions.
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Poppy Grosse
ADMINISTRATIVE ASSISTANT
Location: Marrickville
Poppy is our Administrative Assistant and a third-year Psychology student at UNSW Sydney. She has a strong interest in mental health and client care. She brings excellent organisational skills, attention to detail, and a warm, professional manner to her role.
Poppy supports the team with appointment scheduling, client communication, and day-to-day operations, ensuring a smooth and welcoming experience for everyone attending the practice.
Meet Our Psychologists
All of our clinical psychologists have undergone extensive training in the implementation of evidence-based approaches either through Masters, Doctorate or combined PhD/Masters degrees in Clinical Psychology.
