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Child at Psychologist

Exceeding Expectations One Client at a Time

Since 2017, Step by Step Interventions has been dedicated to serving families in the North West Sydney area by offering comprehensive early intervention and allied health services. Our mission is to support families through their child’s development journey, advocate for our clients, and collaborate with educators, teachers, and other health professionals involved in their lives.

We believe in inclusivity and strive to make our services accessible to all. That’s why we offer onsite consultations and actively engage with the broader community to build strong relationships with those who support our clients.

At Step by Step Interventions, we are committed to providing evidence-based interventions, assessments, and recommendations. We equip families with the necessary tools to navigate day-to-day life and create a nurturing and supportive environment for growth.

Join us on this journey of progress and empowerment as we work hand in hand to unlock the full potential of every child we serve.


At Step by Step Interventions, our Consultants are the heart and soul of our team. As highly skilled and passionate Allied Health Professionals, they play a vital role in supporting our clients on their journey to progress and success.

As the primary point of contact, our Consultants work closely with clients to develop individualised goals and strategies tailored to their unique needs. They are committed to building strong relationships with our clients and their carers, ensuring open communication and collaboration every step of the way.

Our Consultants take great pride in guiding our clients through their intervention journey, providing the necessary tools, resources, and support to foster growth and development. With their expertise in evidence-based practices, they empower clients to overcome challenges, build essential skills, and achieve meaningful milestones.

At Step by Step Interventions, our Consultants are dedicated to making a positive impact in the lives of our clients and their families. With their unwavering commitment and compassionate approach, they create a safe and supportive environment for growth, fostering a sense of confidence and accomplishment.

Experience the expertise and genuine care of our Consultants as they guide you and your loved ones towards a brighter and more fulfilling future. Together, we can achieve remarkable progress, one step at a time.



Peta Williams

Peta (1)

Peta (1)

Cindy Mihardja



Lauren Chapman



Tanti Hardjolukito



Ruby Taylor Dalton

Behaviour Therapists



Lead Behaviour Therapist

Registered Behaviour Therapist (RBT)

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Behaviour Therapist

Registered Behaviour Therapist (RBT)



Behaviour Therapist

Registered Behaviour Therapist (RBT)

Our Behaviour Therapists are clinicans who have obtained their Registered Behaviour Technician (RBT) Qualification. An RBT is a paraprofessional certification in behaviour analysis. RBTs assist in delivering behaviour analytic services and practice under the direction and close supervision of a Consultant. 

Customer Service Team

At Step by Step Interventions, we take great pride in providing outstanding customer service that goes above and beyond. Our dedicated Customer Service Team is here to ensure your experience with us is seamless, supportive, and truly exceptional.

With a passion for helping families and a deep understanding of our services, our team members are ready to assist you every step of the way. They are friendly, empathetic, and always eager to answer any questions you may have, address your concerns, and provide guidance.

Whether you're a new client looking to learn more about our programs or a current client seeking assistance with scheduling or billing, our Customer Service Team is committed to providing prompt and personalised support. They are here to listen, understand your unique needs, and find the best solutions to meet your requirements.

Not only are our team members highly knowledgeable about our services, but they also possess a wealth of experience in working with families and individuals with diverse needs. Their expertise and dedication shine through in every interaction, ensuring that you feel valued, heard, and supported throughout your journey with us.

At Step by Step Interventions, our commitment to exceptional customer service is at the heart of everything we do. We believe that every interaction is an opportunity to make a positive impact, and our Customer Service Team is here to make your experience with us truly exceptional.

Get in touch with our Customer Service Team today, and let us show you the highest standard of care and support that Step by Step Interventions is known for.

Jenna Coquillon

Practice Manager

Meet Jenna, our energetic Practice Manager at Step by Step Interventions! With a passion for supporting families and a knack for guiding them through our process and NDIS, Jenna is here to ensure a seamless experience for everyone.


When asked to describe Step by Step in three words, Jenna says it’s all about fun, caring, and supportive vibes! She believes in creating an environment where our clients feel empowered, valued, and ready to take on new challenges.

Beyond her role, Jenna has an adventurous side. Did you know she’s been to Nationals for Trampolining? Talk about reaching new heights! And as if that’s not exciting enough, Jenna has just gone off on Mat Leave for her new baby! We’re thrilled to celebrate this new chapter with her.

When you connect with Jenna, you can expect a warm smile, a listening ear, and someone who genuinely cares about your journey. She’s here to ensure you have a fantastic experience with Step by Step Interventions.

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Kate Gooley

Client Care Champion

Introducing Kate, our vibrant Customer Service Team Member at Step by Step Interventions! With a passion for connection, Kate brings a ray of sunshine to our team and our clients.


When it comes to her work, Kate cherishes the meaningful connections she makes with both her co-workers and clients. Whether it’s a friendly smile, a listening ear, or going the extra mile to make someone’s day brighter, she believes that the human connection is what truly matters.

The best advice Kate has ever received is that people never forget how you made them feel. That’s why she strives to create a warm and welcoming atmosphere for everyone who walks through our doors or gives us a call.

Now, here are some interesting tidbits about Kate! Despite being from Canada, she learned to ski in Norway – talk about embracing the snow in style! And let's not forget about her adorable and scruffy rescue dog, Baxter. From Mexico to Canada, and now all the way to Australia, Baxter’s journey is as adventurous as Kate’s spirit. They’re a dynamic duo, spreading love and joy wherever they go!

But that’s not all. Kate’s adventurous nature led her to study abroad and live in Denmark for a whole year when she was just 16. Talk about an incredible experience that shaped her worldview and love for exploring different cultures.

When you meet Kate, you’ll instantly feel her genuine warmth and friendly energy. She’s here to make sure your experience with Step by Step Interventions is nothing short of delightful. So, don't hesitate to reach out – she's ready to brighten your day!

Thea Brailey

Personal Assistant

Thea is the energetic and dedicated Personal Assistant to Peta. She is passionate about celebrating wins, personal growth, and embracing every day’s excitement, so she adds a vibrant touch to our team.

Thea has previously worked in children’s services as an educator and holds a Cert III in Early Childhood Education. She has also worked as a disability support worker, empowering children and adolescents to develop social skills and explore new opportunities.

Beyond her professional endeavours, Thea leads a dynamic life outside of work. As an on-call firefighter, she fearlessly tackles challenges head-on and embodies the spirit of bravery and dedication. And let's not forget Piper, her loyal canine companion who never fails to bring joy and companionship.

With her boundless energy and diverse experiences, Thea brings our team a fresh perspective and can-do attitude. Her dedication, positive outlook, and commitment to growth make her an invaluable asset to Step by Step Interventions.

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