Rouse Hill THERAPISTS
Advantage Psychology employs a large number of Psychologists and are able to offer assessment and treatment services for adults, adolescents and children with a wide range of mental health issues.
OLIVIA GUPTA
CLINICAL Psychologist
Client Focus: Adolescent and Adult
Olivia is a Clinical Psychologist who works with clients across the lifespan. With her warm and engaging approach, she creates a safe and supportive environment where clients feel understood and empowered to make meaningful change.
She has experience across both public mental health and private practice, drawing on a range of evidence-based approaches including Cognitive Behaviour Therapy (CBT), Acceptance and Commitment Therapy (ACT), trauma-focused CBT, and Narrative Therapy. Olivia is particularly passionate about supporting adolescents navigating major life transitions, as well as helping clients of all ages with anxiety, depression, and trauma. She is also experienced in working with adjustment to injury, work-related stress, and conducting psychological assessments for ADHD and learning difficulties.
Olivia works closely with families to deliver holistic care for young people, and she is sensitive to the needs of clients from culturally diverse and neurodiverse backgrounds.
Olivia is available at our Rouse Hill practice and accepts Medicare, private, and WorkCover referrals.
ISHI DIXIT
REGISTERED Psychologist
Client Focus: All Ages
Languages: English, Hindi
Ishi is a warm, caring, and naturally uplifting Registered Psychologist who brings genuine curiosity to every client she works with. Known for her warm and attentive nature and ability to put people at ease, Ishi creates a safe and encouraging space for clients of all ages to explore their concerns and move toward meaningful change.
Ishi has experience across child, adolescent, and adult mental health, including work in university clinics, private practice, paediatric oncology, and disability services. She is trained in evidence-based therapies such as Cognitive Behaviour Therapy (CBT), Acceptance and Commitment Therapy (ACT), Motivational Interviewing (MI), and Problem-Solving Therapy (PST). Her clinical background includes supporting clients experiencing anxiety, depression, trauma-related difficulties, emotional dysregulation, adjustment challenges, and social skills concerns, as well as conducting psychometric assessments and developing detailed treatment plans.
Clients value Ishi’s compassionate communication style and her ability to balance warmth with evidence-based care. She is deeply committed to helping individuals feel understood and empowered at every stage of their therapeutic journey.
Ishi works from our Rouse Hill practise and welcomes referrals from Medicare, NDIS, and Private pathways.
PAUL SALVIANI
Registered Psychologist
Client Focus: All Ages
Paul is a Registered Psychologist with a Bachelor of Physical and Health Education, a Graduate Diploma of Psychology, and a Postgraduate Diploma of Psychology.
Paul has a warm and friendly approach, creating an environment where his clients feel relaxed and safe.
He has extensive experience in supporting both young people and adults through the assessment and treatment of a wide range of mental health challenges. He specialises in Workers Compensation, Cognitive, ADHD, and ASD assessments, offering a comprehensive approach to each client’s unique needs. Paul integrates various evidence-based treatment modalities, including Cognitive Behavioural Therapy (CBT) and Solution-Focused Therapy, to help individuals overcome obstacles and achieve meaningful progress.
Paul works at both our Rouse Hill and Penrith practices and welcomes referrals through Medicare, Private, BUPA, and Work Cover arrangements.
DR FIONA SHEDDEN
Provisional Psychologist*
Client Focus: All Ages
*Dr Fiona Shedden is registered as a Clinical Psychologist in the UK who is undergoing her transition program with the Australian Health Practitioner Regulation Agency.
Fiona has over 10 years’ experience working across community and inpatient settings in the UK. She supports children, adolescents, and adults experiencing anxiety, depression, emotional regulation difficulties, trauma, self-esteem challenges, relationship concerns, and life transitions.
Fiona has a particular strength in working with children and young people, and values collaborating with parents and caregivers to support positive change both within and beyond the therapy room. She also has experience supporting individuals with intellectual disability and neurodivergent presentations, including ADHD and Autism, and conducts ADHD assessments with children and adolescents.
Drawing on evidence-based approaches such as Cognitive Behavioural Therapy (CBT), Dialectical Behaviour Therapy (DBT), and trauma-informed, attachment-focused frameworks, Fiona tailors therapy to each person’s needs, strengths, and goals. She has a strong interest in building emotional regulation skills as a foundation for long-term wellbeing.
Fiona is known for her warm, thoughtful, and down-to-earth approach. She is committed to creating a safe, supportive space where clients feel heard, understood, and empowered to make meaningful, lasting change.
Fiona is available for appointments at our St Marys and Rouse Hill clinic and accepts referrals from GPs, NDIS, and Private pathways.
MARETTE YOUSSEF
REGISTERED PSYCHOLOGIST (CLIN. REG)
Client Focus: All Ages
Marette has a Master of Clinical Psychology from Macquarie University and a Bachelor of Psychology (Honours Class 1) from UNSW.
Marette is experienced in supporting clients across a range of challenges including anxiety, depression, ADHD, Autism Spectrum Disorder, and other developmental or emotional difficulties. She is passionate about helping young adults with anxiety, and is skilled in using evidence-based therapies including CBT, ACT, DBT, and motivational interviewing. Marette also provides detailed psychometric assessments such as ADHD, ASD, and cognitive testing.
Marette draws on her experience working in private practice, hospital, and community mental health services and sees all ages from 7 years to adulthood.
Warm, empathetic, and collaborative in her approach, Marette works closely with clients and families to build resilience, foster growth, and support lasting change. She understands Arabic and is passionate about providing accessible and culturally sensitive care.
Marette is available for appointments at our Rouse Hill clinic on Wednesdays and Thursdays, offering Medicare, self-managed plan NDIS, and private referrals.
MITCH O’BRIEN
Clinical Psychologist
Client Focus: Adult
Mitch is a Clinical Psychologist and Business Director with a warm, practical approach to therapy. He works primarily with adults who are proactively addressing concerns with anxiety, stress, and depression. Mitch also has a particular interest in providing executive, life, and career coaching, drawing on his background in business to help clients navigate professional and personal development.
He utilises a flexible, evidence-based approach to treatment, drawing from Cognitive Behaviour Therapy (CBT), Acceptance and Commitment Therapy (ACT), mindfulness practices, Internal Family Systems, and skills training. Mitch is a fully endorsed Clinical Psychologist and holds a Master’s degree in Clinical Psychology.
Mitch is available for appointments at our Penrith, St Mary’s, and Rouse Hill clinics, and welcomes referrals through Medicare, BUPA and Private pathways.
MICHELE MOUSSA
Registered Psychologist
Client Focus: Adult
Michele Moussa is a warm and approachable Psychologist who offers a supportive, non-judgmental space where individuals can explore their thoughts, emotions, and experiences at their own pace. Michele has special interest in supporting individuals dealing with anxiety, depression, stress, sleep disturbances and anger management. She is known for bringing a calm and compassionate presence to her sessions, helping clients feel safe and heard — especially when working through complex or sensitive issues.
Her approach is grounded in evidence-based practices including Cognitive Behavioural Therapy (CBT), Acceptance and Commitment Therapy (ACT), mindfulness, schema therapy, and solution-focused strategies. Michele tailors her approach to each person’s unique needs and goals, helping them move toward lasting change and improved wellbeing.
Michele is a member of the APS and is registered with the Australian Health Practitioner Regulation Agency.
Michele is available for sessions at our Rouse Hill location. She welcomes referrals through Medicare, private, and self-managed or plan NDIS.
Natalie SAWTSCHEK
REGISTERED Psychologist
Client Focus: Adult
Natalie is a warm, experienced, and collaborative Psychologist who brings more than 20 years of clinical, managerial, and community-based experience to her work. She is passionate about supporting individuals to overcome challenges, build resilience, and move toward healthier and more fulfilling lives.
Natalie’s background includes managing multidisciplinary teams, delivering evidence-based therapeutic interventions, leading men’s behaviour change programs, and supporting clients with complex psychological, social, and vocational needs.
She is skilled in working with adults presenting with stress, anxiety, depression, relationship difficulties, trauma histories, life transitions, and psychosocial barriers. Natalie draws on a range of evidence-based, therapeutic modalities and brings a calm, respectful, and non-judgemental approach to every session.
Clients appreciate Natalie’s compassion, and her ability to understand challenges in a broader life context.
Natalie is available at our Rouse Hill and St Marys Practices, and welcomes clients from Medicare, Private, and Workers Compensation referral pathways.
NICHOLAS SALEEBY
Registered Psychologist
Client Focus: Adolescent & Adult
Nick is a registered psychologist with a relaxed, approachable, and authentic style. He creates a supportive environment where clients feel heard and understood, working collaboratively to help them move toward meaningful change.
Nick draws on a strengths-based framework and incorporates evidence-based approaches such as Cognitive Behavioural Therapy (CBT) and Dialectical Behaviour Therapy (DBT) skills. He is passionate about supporting adolescents and adults with a range of challenges including anxiety, depression, anger, ADHD, and emotional regulation.
Nick is committed to helping his clients develop insight, build resilience, and find effective strategies to improve their wellbeing and quality of life.
He consults from our Rouse Hill practice. He accepts referrals under Medicare and private arrangements. Nick is also an approved provider for DVA, NDIS, and Work Cover.
AJLA BECIROVIC
REgistered psychologist (clin. REg)
Client Focus: Child, Adolescent & Young Adult
Languages: English, Bosnian
Ajla is a Clinical Psychologist Registrar with a strong passion for helping young individuals build confidence, resilience, and clarity in their lives. She brings a warm and collaborative approach to her work, creating a safe space for clients to explore life’s challenges and take meaningful steps toward healing and growth. Ajla has a passion for working with individuals with anxiety, depression, stress, trauma, and substance-related challenges. She draws on evidence-based modalities including Cognitive Behavioural Therapy (CBT), Acceptance and Commitment Therapy (ACT), and Narrative Therapy. Ajla values working with each person’s unique strengths and tailoring therapy to support their goals. She is also experienced in psychological assessments, including cognitive and developmental assessments, and offers clear, practical feedback and recommendations.
Ajla has completed her Master of Clinical Psychology and has worked in multidisciplinary teams alongside GPs, psychiatrists, educators, and allied health professionals.
Ajla sees clients at our Rouse Hill location and welcomes referrals via Medicare or private clients.
JO CALI
Registered Psychologist
Client Focus: All Ages
Jo is a warm, energetic, and attentive clinician who works with clients across the lifespan. With extensive experience as a school counsellor and educator, she has a strong background in supporting young people and their parents through challenges such as anxiety, mood difficulties, learning issues, and adjustment concerns.
Jo provides a safe and collaborative space for clients of all ages to work through life’s challenges using evidence-based strategies, including trauma-focused CBT, Acceptance and Commitment Therapy (ACT), and autism support interventions. She has also worked in child anxiety programs such as Cool Kids and can provide clients with a range of mental health assessments such as ADHD, cognitive and achievement.
Passionate about helping people feel understood and empowered, Jo is committed to fostering meaningful and lasting change.
Jo is available at our Rouse Hill clinic, welcoming clients through Medicare and private pathways.
NICOLA RICH
Clinical Psychologist
Client Focus: Adult
*Available for exclusively by video or phone
Nicola is a Senior Clinical Psychologist with over 15 years of experience supporting adolescents and adults with a wide range of mental health concerns. She has a calm, thoughtful, and practical approach, and is committed to working collaboratively with her clients to help them achieve meaningful change.
Nicola draws on evidence-based therapies including Cognitive Behaviour Therapy (CBT), Acceptance and Commitment Therapy (ACT), and Schema Therapy. She has particular interest and experience in treating depression, panic disorder, sleep difficulties, social anxiety, and trauma.
Nicola has facilitated programs such as the “Cool Kids” anxiety program and the Chronic Pain group for the Hawkesbury Hills Division of GPs.
Nicola offers therapy exclusively via telehealth (video or phone), making her accessible to clients across Australia from the convenience of their home or work. She accepts referrals under Medicare, private arrangements, and is an approved provider for DVA, NDIS, and Work Cover arrangements.
ROHAN KITCHING
COUPLES COACH
Client Focus: Couples
*Available exclusively by video or phone
Rohan is a Relationship Coach who brings warmth, wisdom, and a calming presence to his work with couples. Known for his approachable and compassionate style, Rohan instantly helps people feel safe to share openly and work through life’s challenges together.
Rohan is Level 2 trained in the Gottman Method Couples Therapy, a world-renowned, evidence-based approach developed from over 40 years of research. The Gottman Method gives couples practical tools to strengthen communication, build connection, and manage conflict in a way that deepens trust and respect.
Drawing on this proven framework, Rohan helps couples at all stages of their relationship—whether navigating communication difficulties, rebuilding after setbacks, or wanting to strengthen an already solid foundation. His work is grounded in the belief that every couple has strengths to build on, and that meaningful change is possible when both partners feel heard and supported.
Rohan offers appointment times via online sessions on both Mondays and Thursdays from 12:30-7:30pm, making it easier for couples to access support at times that suit their busy lives.