Meet Our Team

Natalie Kleindyk

Registered Psychologist
Psychology Board Approved Supervisor
Company Director

Natalie Kleindyk is a Company Director and psychologist at Concepts Psychology. She has a Bachelor of Arts (Psychology), a Graduate Diploma of Science (Psychology) and is a Member of the Australian Psychological Society.

Natalie has over 20 years’ experience in the counselling and assessment of children, young people and adults. She conducts assessments at our office and offsite locations for developmental and diagnostic disorders, including autism spectrum disorders. Natalie has also worked extensively in the area of trauma for children in Out of Home Care. She provides accurate assessments and practical behavioural support services to young people and their carers.

Originally drawn to psychology by an interest in maintaining positive mental health, Natalie enjoys identifying what underlies or motivates people’s behaviour. She finds working with clients across the lifespan and assisting families to achieve positive outcomes rewarding.

Away from work, Natalie enjoys spending time with her family and friends, being outdoors and reading.

Tyrone Hill

Registered Psychologist
Company Director
Psychology Board Approved Supervisor
Griffiths III Registered User

Tyrone is the Co-Director at Concepts Psychology. He holds a Bachelor of Arts in Psychology, a Postgraduate Diploma in Psychology, and a Master’s in Educational and Developmental Psychology. He is also a member of the Australian Association of Psychologists.

Tyrone started his psychology studies in 2003 and has held various impactful roles. His experience includes working in private hospital settings, focusing on patients with drug and alcohol dependencies, and providing guidance as a high school counsellor. In 2009, Tyrone joined Concepts Psychology as a provisional psychologist, obtained general registration in 2011, and was appointed Co-Director of the organisation in 2014.

Specialising in psychological assessments, Tyrone conducts assessments for ADHD, autism, intellectual disabilities, and specific learning disorders such as dyslexia, dysgraphia, and dyscalculia. He is also a registered user of the Griffiths-III Developmental Scales, guiding parents and caregivers regarding early intervention supports for identified developmental concerns.

Tyrone is recognised for his exceptional problem-solving skills and deep passion for supporting children with complex needs. Outside of work, he enjoys cooking, spending time with his partner and his two French Bulldogs, Max and Gus, and travelling.

Fionna Hamilton

Registered Psychologist
Specialising in functional family therapy, Fionna Hamilton studied a Bachelor of Psychology from Wollongong University and Monash University (Honours).

At Concepts Psychology, Fionna applies psychological and therapeutic practices for clients who demonstrate challenges across different areas of mental health. Fionna is a certified facilitator of the Westmead Feelings Program for neurodiverse children.

Fionna decided to pursue psychology because she found a strong connection to encouraging growth and development in all areas of mental health. She enjoys engaging with clients in a safe and positive environment to help them achieve their goals.

On the weekend Fionna enjoys heading into nature to go camping.

Alexandra Lowry

Registered Psychologist
Passionate about supporting individuals’ emotional wellbeing to live a purposeful and fulfilling life, Alexandra Lowry is one of Concepts Psychology’s Provisional Psychologists. She holds a Bachelor of Psychological Science (Honours) and Bachelor of Commerce from the University of Wollongong.  Alexandra chose psychology to create strong therapeutic relationships with clients to encourage their personal growth.

Working with clients in Out of Home Care, she provides therapeutic support in a counselling-based environment. Alexandra also administers a range of psychometric assessments to clients and is completing her certification to become a facilitator of the Westmead Feelings Program.

Alexandra has completed specialised training in Acceptance and Commitment Therapy (ACT) and has worked with individuals experiencing various work-related injuries and psychological disorders and providing them with support during their return to work.

Outside of work you will find Alexandra practicing yoga, exploring new places and being creative through pottery.

Derin Acaroglu

Psychologist | Provisional Registration
Derin is a Provisional Psychologist at Concepts Psychology. He holds a Bachelor of Arts (Psychology) from Macquarie University, a Graduate Diploma of Psychology Advanced from Monash University, and a Master of Professional Psychology from Western Sydney University. He is also an Associate Member of the Australian Psychological Society.

Before working at Concepts, Derin had previously worked with clients who had experienced complex trauma and medical conditions, including NDIS-funded clients. He spent several years working within the public hospital system providing support for patients and families of the hospital system.

At Concepts Psychology, Derin uses a wide range of therapeutic interventions and counselling techniques to provide the best support for his clients. Derin works with clients across the lifespan, including Out of Home Care and those with NDIS funding. He also administers a range of psychometric and diagnostic assessments.

Outside of work and on weekends, Derin enjoys either ‘doing nothing’ or being active!

Courtney Kruger

Practice Manager
Trainee Behaviour Support Practitioner

Courtney Kruger is the Practice Manager and a Trainee Behaviour Support Practitioner here at Concepts Psychology. She started as our receptionist and is always at hand to assist where she can. Whether that be with scheduling, office administration or communicating with representatives from the numerous organisations and schools we work with across the greater Sydney area.

Courtney joined the team here at Concepts Psychology in 2021 after returning to Australia from a 5-year stint in Glasgow, Scotland. It was in the UK where she juggled being a mum, working at home as a receptionist during the day and then as a carer for the elderly at night. This fast paced experience taught her crucial time management skills which have enabled her to be a great fit for Office Manager.

Her responsibilities also include invoicing, email management, account keeping, diary management and relationship building. Passionate about equality, social justice and supporting those in need, she wanted to be part of a team which supports others to reach their full potential and live their best life. She enjoys meeting members of the local community in her role and working within a team that strive to empower others.

Outside of work she loves spending her spare time with family and friends either by brunching, shopping, or exploring the great outdoors.