Meet your team
Our story
Peter Walker & Associates Clinical Psychologists was founded in 2002 by Peter Walker who had been working as a clinical psychologist since 2000.
The practice offered psychological treatments for those experiencing difficulties with anxiety, depression and couples in distress. It was unique in that it also offered specialised treatments for those experiencing psychotic disorders and bipolar disorder. At that time, the development of psychological treatments for these conditions was in its infancy and Peter was considered an innovator in this field.
Over the years, the Randwick practice has grown to include several clinicians, each with their own areas of interest. The predominant model used by our clinicians is Cognitive Behavioural Therapy (CBT) and related approaches within this framework. 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.
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Toni Gumley
PRACTICE MANAGER
Toni has been taking care of our clients and clinicians at the practice for many years, so knows all there is to know about our business. She is available to answer any questions you have about working with us or to help schedule your appointments.
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Dr Aliza Werner-Seidler
CLINICAL PSYCHOLOGIST
B.Psychol.(Hons), M.Psychol.(Clinical), Ph.D
Aliza can help you with: Sleep difficulties, Anxiety, Depression
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Tamara Kacen
CLINICAL PSYCHOLOGIST
BA(Hons), M.Psychol.(Clinical)
Tamara can help you with: Anxiety, Depression, Stress and Adjustment, Relationship Difficulties, Chronic Physical Health Issues
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Dr Yasmeen El Masry
CLINICAL PSYCHOLOGIST
B.Psychol.(Hons), M.Sci., D.ClinPsych
Yasmeen can help you with: Anxiety Disorders, Low Self Esteem, Phobias, Perfectionism. Yasmeen can see CTP clients
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Dr Vesna Trenoska
CLINICAL PSYCHOLOGIST
BA Psychology (Hons), MOrgPsych, MClinPsych, PhD
Vesna can help you with: Anxiety, Stress, Trauma, OCD
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Christopher Evans
CLINICAL PSYCHOLOGIST REGISTRAR
B.Psychol.(Hons), M.Psychol.(Clinical)
Christopher can help you with: Anxiety, Depression, ADHD
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Dr Oren Griffiths
CLINICAL PSYCHOLOGIST
B.Psychol.(Hons), M.Psychol.(Clinical, Hons), Ph.D
Oren can help you with: Anxiety, Depression
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Maria Schaffer
CLINICAL PSYCHOLOGIST REGISTRAR
BA(Hons), M.Psychol.(Clinical)
Maria can help you with: Anxiety, Depression, OCD, Trauma, Clinical Perfectionism, Low Self Esteem, Panic Disorder, ADHD Assessments. Maria is SIRA accredited and can see workcover and CTP clients
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Daniel Stein
CLINICAL PSYCHOLOGIST
B.Psychol.(Hons), M.Psychol.(Clinical)
Daniel can help you with: Anxiety, Depression, Anger. Daniel is workcover accredited.
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Roanna Chan
CLINICAL PSYCHOLOGIST
B.Psychol.(Hons), M.Psychol.(Clinical)
Roanna can help you with: Anxiety Disorders, Depression, Trauma
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Dr Sophie Li
CLINICAL PSYCHOLOGIST, POST-DOCTORAL RESEARCHER UNSW
B.Psychol.(Hons), M.Psychol.(Clinical), Ph.D
Sophie can help you with: Sleep Disturbance, Phobias, Digital Mental Health, ADHD Assessments, ASD Assessments (coming soon)
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Dr Zeeshan Shahnawaz
CLINICAL PSYCHOLOGIST
B.Sc.(Hons), M.Sci., D.ClinPsych
Zeeshan can help you with: Depression, Anxiety, Grief, Mood Disorders
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Peta O'Flynn
CLINICAL PSYCHOLOGIST
B.Psychol.(Hons), M.Psychol.(Clinical)
Peta can help you with: Anxiety, Depression, Phobias
CURRENTLY NOT ACCEPTING NEW CLIENTS
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Dr Samatha Tang
CLINICAL PSYCHOLOGIST
B.Psychol.(Hons), M.Psychol.(Clinical), Ph.D
Samantha can help you with: Anxiety, Depression, Perfectionism.
CURRENTLY ON RESEARCH LEAVE, NOT ACCEPTING NEW CLIENTS
Practice Director, Principal Clinical Psychologist B.Psychol.(Hons), M.Psychol.(Clinical)
Peter is the Principal clinical psychologist within the practice. He works predominantly within a Cognitive Behavioural Therapy (CBT) framework and has been recognised as an expert in this area.
Peter has a number of publications in the area of CBT and provides training in this treatment for the University of New South Wales. He teaches at various universities and is highly involved with the Australian Psychological Society, Psychology Council of New South Wales and the Australian Clinical Psychology Association.
In addition to CBT, Peter also has considerable experience and interest in the provision of other therapeutic approaches including Schema Therapy, Dialectical Behaviour Therapy (DBT), Acceptance and Commitment therapy (ACT) and Mindfulness therapy.
The majority of clients that Peter works with are referred for psychological treatment of depression, anxiety or anger and he is highly experienced in the treatment of relationship distress, psychosis and bipolar disorder.