Skip to main content

Our Psychologists

Our psychology team is staffed by a team of highly qualified and experienced Psychologists that provide evidenced based treatments for mental health, wellbeing and personal development.

photo of Photo of member.memberName

Peter Casbolt

Consultant & Senior Clinical Psychologist | Guest Speaker | Post-Grad Lecturer | Empowering Ownership of Mental Health

Peter is a Consultant, Senior Clinical Psychologist and Speaker best known for his direct, empowering approach to the discussion, assessment and treatment of mental health conditions. His work across mood and anxiety disorders, personality disorders, drug and alcohol addictions, trauma, grief and loss, self-esteem and relationship difficulties has established him as a unique voice in the field. Today, Peter blends approaches including CBT, DBT, ACT and Schema therapy to meet the diverse, complex needs of his patients, empowering people to take control and responsibility of their mental health.

As a private practitioner, Peter has worked at several hospital in Sydney and is currently a Consultant Senior Clinical Psychologist at The Hills Clinic Hospital. With experience in one-to-one and group settings, he has developed and led the delivery of evidence based treatment programs improving patient wellbeing across the board.

Peter continues to play an active role in the supervision and progression of junior psychologists and since 2015 has held post as a Visiting Lecturer and Supervisor on the Master of Professional Psychology program at Macquarie University. He has also led a number of corporate engagements aimed at improving workplace culture through the application of psychology principles to key areas such as conflict management.

Peter’s mission is to continue to break down the stigma that exists in relation to mental health. His recent speaking engagements include raising awareness around mental health and its treatments amongst delegates of the Burn Bright, Domestic Violence Prevention Network, The Rotary Club of Dural and The Mental Health Youth Forum.

Peter holds a Master of Psychology (Clinical).

Peter has a practice in Castle Hill Monday, Tuesday, Wednesday & practice at The Hills Clinic, Kellyville Thursday & Friday. He can be contacted either by contacting the medical centre on 1300 122 144 or directy on 0412 536 186

photo of

Clara Fritchley

Clinical Psychologist

BPsych(Hons), MClinPsych, PhD Candidate, AHPRA, MACPA

Clara holds an honours degree in psychology and a Masters degree in Clinical Psychology, both from Macquarie University. She is currently undertaking a PhD with the University of NSW. Clara is registered with the Australian Health Practitioner Regulation Agency (AHPRA) and is a member of the Australian Clinical Psychology Association (ACPA). She is eligible for the Clinical Psychologist rebate through Medicare.

Clara’s work within the private and public sectors has provided her with experience working with people with a range of difficulties including depression, anxiety, substance abuse and traumatic stress. She also has experience working with adolescents and their families who are experiencing a wide range of difficulties including depression, anxiety, relationship difficulties and parenting stress. She has worked providing therapy both to individuals and in group settings and is currently working on a Dialectical Behaviour Treatment Program for adolescents. She has also spent a number of years working on a comprehensive Dialectical Behaviour Therapy program for adults with emotion regulation and relational difficulties.

Clara is a warm and compassionate therapist who values the uniqueness of each individual’s experience. She offers a respectful and validating environment, providing a space for people to explore their struggles and needs in ways that encourage change and growth. She feels passionate about helping people flourish in their lives and to develop a greater capacity for resilience, as well as develop positive and meaningful relationships with themselves and others. Clara uses an evidence based and collaborative approach in her work drawing on a number of therapeutic approaches including Cognitive Behaviour Therapy, Dialectical Behaviour Therapy and Acceptance and Commitment Therapy to help people achieve their goals. Clara practices at the Hills Clinic Hospital on Fridays and can be contacted on 0431690811 or through the Hills Clinic Medical Centre.

photo of Photo of member.memberName

Nicole Dunn

Consulting Principle Psychologist B. Psych (Hons), Grad Dip Org Beh, Grad Dip App Bud, MAPS

Supervising Psychologist. Workcover Accredited.

Nicole has worked as a Psychologist since 2011. She is a nationally registered Psychologist with Post Graduate certification in Organisational Behaviour and Applied Buddhist Studies. Nicole has completed undergraduate and post graduate University training with honours; including B. Psych (Hons) at Newcastle University, The Graduate Diploma of Organisational Behaviour at Macquarie University, Graduate Diploma of Applied Buddhism at the Nan Tien Temple, Wollongong University and produced a thesis on the development of Socially Conditioned Fear at the Brain and Behaviour Lab with Newcastle University.

Nicole has completed further training in therapeutic methods for children, adolescents and adults. Nicole has an interest in Anxiety treatment, parenting and child behaviour management, Autism/Aspergers support (not assessment), Career Planning/Coaching, Workplace Injury, PTSD and Bullying. Nicole offers psychology services to adults, teens, children and families for a range of concerns/challenges from Anxiety, Depression, Phobias, OCD, Relationship and family challenges and behaviour problems, personality disorders and autism spectrum.

Nicole regularly presents to some of Australia’s largest corporates on enabling psychologically healthy workplaces and teams, this involves identifying, intervening and preventing psychosocial risk in the workplace. Nicole provides training and skill development to managers to empower them to support the mental wellbeing of their team, enabling a thriving work environment.

Currently, Nicole’s professional work entails a combination of training, psychologist supervision and general psychology practice. Her work involves using therapy and counselling techniques to assist people overcome emotional and behavioural challenges.

Nicole is an AHPRA Board Approved Psychologist Supervisor, who supervisors registered and provisionally registered Psychologists. Nicole can tailor a supervision program for the specific training needs of her student Psychologist’s and only takes on a limited number of students to ensure appropriate exposure and mentoring opportunity.

Please contact Nicole directly via email for specific inquiries. Nicole consults from The Hills Clinic, Castle Hill otherwise you can make an appointment to see her at the below location.

Coral Tree Medial Practice

1 Coral Tree Drive Carlingford, NSW, 2118

Saturday 9:00am - 1:00pm.

T: 02 9872 2723

photo of Photo of member.memberName

Lauren Corma

Clinical Psychologist

Lauren is a dedicated clinical psychologist with over 20 ) years experience in private practice; treating adolescents 16ys+, adults, the elderly and couples. She has extensive experience providing effective treatment for depression, anxiety (incl.generalised anxiety disorder, panic,PTSD), mood disorders, addictions, chronic pain, grief, adjustment issues, personality disorders, self esteem, and relationship issues.She is a member of the Australian Psychological Society and the College of Clinical Psychologists, and is accredited with the Department of Veterans Affairs and Workers Compensation. Lauren consults from The Hills Clinic, Hornsby.

photo of Photo of member.memberName

Dr Emily Kwok

Clinical and Forensic Psychologist, Family Dispute Resolution Practitioner, Nationally Accredited Mediator

PhD, M Psych (Forensic), BScAdv (Hons), Grad Dip Family Dispute Resolution, MAPS

Emily has been treating mental health disorders in children and adults in private practice for over ten years. She has a particular specialty in working with families, parents and children in family matters as well as children presenting with behavioural and social difficulties. Prior to private practice, Emily worked extensively in community-based settings treating patients with addictions such as drug and alcohol use and gambling. She also worked as part of a research team that investigated youth and adult offending, and their re-integration into the community.

As a forensic psychologist, Emily regularly conducts assessments for court purposes in both criminal and civil matters. She is also a Family Dispute Resolution Practitioner who assists in family legal matters and works with separated couples to reach parenting agreements that are in the child's best interests. Emily is a guest presenter for the Master of Forensic Psychology program at the University of New South Wales, facilitating its Dispute Resolution and Mediation workshop. Emily chaired the Dispute Resolution and Psychology Interest Group of the Australian Psychological Society from 2015 to 2019. She currently sits on the Committee of the Collaborative Working Party, Resolution, London. Emily has provided training in dispute resolution to mental health professionals and lawyers in Australia and New Zealand.

Emily's PhD thesis examined the effectiveness of existing family law processes for the resolution of complex family disputes. Her current research investigates child protection policies in both domestic and international child welfare systems. Emily was Adjunct Fellow of the School of Medicine at Western Sydney University where she supervised medical students on mental health placements. She is a Fellow of both College of Clinical Psychologists and College of Forensic Psychologists of the Australian Psychological Society.

photo of Photo of member.memberName

Dr Lea Cristante

Clinical Psychologist

Dr Lea Crisante is a highly experienced Clinical Psychologist who has worked in private practice and in-patient and community-based child, adolescent and adult mental health services for many years. She has extensive experience dealing with mood and anxiety disorders and is currently part of the Westmead Program for Complex Trauma. She has a particular interest in child and adolescent mental health, completed her PhD on child behavioural interventions and is a highly skilled family therapist. In addition, Lea has extensive experience using the Cool Kids Anxiety program for children and adolescents and the Positive Parenting Program (Triple P) to assist parents with concerns about their children. Lea has also worked in the field of relationship counselling including 10 years as a senior manager at Relationships Australia. She is particularly interested in working with couples affected by mental health issues including post-natal depression and early childhood trauma. Lea is experienced in using interventions based on CBT, Attachment and Systems Theory, Interpersonal Therapy and Integrative Couple Therapy (Dr John Gottman). Lea enjoys working in innovative services, has presented many papers and workshops in Australia and overseas and is an Associate of the Master of Psychotherapy program, University of Sydney. Dr Crisante consults at The Hills Clinic Kellyville.

photo of Photo of member.memberName

Dr Roberto Parada

Clinical Psychologist

Dr Roberto Parada BA (Hons I) MA(Psych) University of Sydney; PhD(Psych) University of Western Sydney. Registered Psychologist. Dr Roberto H. Parada PhD(Psych) is an experienced psychologist with special interests in assisting children, adolescents and young adults. An approachable and dedicated professional, he has experience in assisting young people with difficulties such as anxiety, depression, aggression management, behavioural challenges, bereavement and bullying. Dr Parada is a full member of the Australian Psychological Society (APS), the Australian Association for Cognitive and Behaviour Therapy (AACBT) and the International Early Psychosis Association (IEPA). Dr Parada has held various academic appointments in Australian universities. He is currently a Lecturer in Adolescent Development, Wellbeing and Behaviour at the University of Western Sydney. He has also held appointments at the University of Notre Dame, Australia as a Lecturer in Counselling where he lectured in Counselling Children and Adolescents; Bereavement and Loss and on Counselling Theory. Dr Parada is an invited reviewer for major scientific journals in child and adolescent mental health and educational psychology. He has published book chapters and scientific papers and has presented at international and national scientific conferences in the areas of psychometrics, parenting skills training, population based interventions, bullying and child and adolescent mental health. His research has also been featured in Teacher Magazine, The Sydney Morning Herald, The Telegraph, The Western Australian, on Channel 7, SBS television and ABC and commercial radio. If you are interested in Dr Parada's research you can obtain further information from:

Dr Parada consults at The Hills Clinic, Castle Hill.

photo of

Rosa Oyta

Registered Psychologist, MPsych(Clin), BPsychSC(Hons), BArts, PBA

Rosa completed her Masters degree in Clinical Psychology and Honours degree in Psychological Science at the Australian College of Applied Psychology. She is registered with he Psychology Board of Australia (PBA) and is a member of the Australian Psychology Society, the Australian Psychological Society College of Clinical Psychologists, and the Australian Clinical Psychology Association.

Rosa's previous experience in clinical psychology involved assessing and treating adults with anxiety and mood disorders in a psychiatric hospital, and has experience conducting group psychotherapy for anxiety disorders, stress management, and mindfulness techniques. She also previously volunteered for years as a counsellor at Lifeline helping the socially disadvantages.

Rosa has significant interest in helping people to overcome stress and anxiety. She is best able to help individuals who experience excessive worrying about daily decisions or social situations (such as job interviews, dating, public speaking), panic/anxiety attacks, or experience work and relationship related stress.

Rosa has a significant interest in helping people to overcome stress and guides people towards living a more balanced and fulfilling life. She helps people build resilience to stress, increase self-confidence, and live in line with their value system.

She is a warm therapist who has a gentle and collaborative approach to treatment. She uses cognitive-behavioural therapy and incorporates relaxation and mindfulness techniques into her sessions. Her treatment approach is research-based and extremely effective.

Rosa practices at The Hills Clinic Castle Hill. For more information or to book a session with Rosa, please call The Hills Clinic on (02) 8855 1300.