Tiffany Allen & Associates

Meet the Clinicians

Tiffany Allen, MAPS, MACPA,
Director and Clinical Psychologist

Master of Clinical Psychology, Bachelor of Science (Psychology)(Honours)
Graduate Diploma Social Science (Psychology), Bachelor of Arts (Education & Humanities)

Tiffany Allen MAPS Clinical Psychologist

Tiffany is a clinical psychologist who enjoys working with people of all ages.  She strives to create an inviting and safe environment for collaborative problem-solving and healing.  Tiffany has worked in a variety of clinical settings, including inpatient and community mental health services for children and adults, oncology services, academic support services, Out-of-Home Care clinical services, and private practice.   

While working with a broad range of clients, presentations and difficulties, Tiffany has special interests in complex trauma, perinatal mental health, child and adult AD/HD, behavioural difficulties, parenting, relationship and attachment difficulties, and grief and bereavement.  In addition to holding a Master of Clinical Psychology, she has completed additional training in the following evidence-based therapeutic approaches and areas of intervention: CBT, DBT, Schema Therapy, Attachment-informed therapy, ACT, CBT for Older Adults (adults 65+), Complex Grief, and Perinatal Mental Health.

Tiffany is a member of the Australian Psychological Society, Australian Clinical Psychology Association, Australian Centre for Grief and Bereavement and the National Council for Family Relations (USA).  Tiffany is a Medicare provider and holds registration with the national governing body for psychologists, the Psychology Board of Australia, a division of AHPRA (Australian Health Practitioner Regulation Agency) Reg # PSY0001821471.

Tiffany is a Board-Approved supervisor, and is available to supervise


Paraskevoula (Patricia) Joannou, MAPS
Clinical Psychologist

Master of Psychology (Clinical), Bachelor of Psychology (Honours)


Patricia is a Clinical Psychologist who enjoys making psychology accessible to people of all walks of life. This means creating an environment for collaboration, creativity, learning and, above all, to create a safe space to talk. Patricia works from a strengths-based approach and works with the aim of working beyond reducing symptoms associated with poor mental health and focusing on working towards living a full filling and happy life.

Patricia enjoys working across a broad range of issues and age ranges. She has a particular passion for working with young people and adolescents (and their parents) to navigate the tricky path into adulthood. Patricia is also passionate about supporting individuals on the autism spectrum, people with intellectual disabilities, anxiety disorders, social skill development, challenges in parenting, behavioural issues, and complex trauma.

Patricia has worked in a wide range of settings including out of home care, community mental health services for children and adults, and private practice. Prior to becoming a psychologist. Patricia worked with women escaping domestic violence and crisis services. She holds a Masters in Clinical Psychology and has completed additional training and supervision in Cognitive Behavioural Therapy (CBT), Trauma-Focused Cognitive Behavioural Therapy (TF-CBT), Dialectical Behavioural Therapy (DBT), Interpersonal Psychotherapy  (IPT), Acceptance and Commitment Therapy (ACT), and Circle of Security. 

Patricia is a member of the Australian Psychological Society, registered with the Australian Health Practitioners Regulation Agency, and provides services under Medicare.


Kerrie Smith, MAPS, CCLIN

Master of Clinical Psychology, Bachelor of Arts (Honours).

Kerrie Smith

Kerrie is a clinical psychologist who has worked in the mental health sector for the past 25 years.  Although she has worked with a range of age populations, she primarily enjoys working with adults.  She works collaboratively with her clients, aiming to provide relevant psycho-education whilst fostering a safe and supportive therapeutic relationship to enhance the healing process. 

Kerrie has worked in a variety of clinical settings, including inpatient and community health services, geriatric services, university psychological services and in private practice. 

Kerrie has worked with a broad range of clients, presentations, and difficulties. Her special interests are in the treatment of anxiety disorders and depression, OCD, PTSD, as well as grief and bereavement. 

She holds a Master of Clinical Psychology and has completed a range of additional training, including CBT, Schema Therapy, ACT, Grief counselling, EMDR, and the Richards Trauma Process.

Kerrie is a member of the Australian Psychological Society and College of Clinical Psychologists. She is a Medicare provider and holds registration with the national governing body for psychologists, the Psychology Board of Australia, a division of AHPRA (Australian Health Practitioner Regulation Agency) Reg # PSY000112341.


Alisha Jain, MACPA
Clinical Psychology Registrar

Master of Clinical Psychology; Bachelor of Psychology (Honours)

Alisha Jain

Alisha is a compassionate and dedicated clinical psychology registrar. She aspires to create a safe, creative and curious therapy space to help her clients better understand themselves. As a recent psychology graduate, she is especially interested in bringing the latest evidence-based practices and critical thinking to her therapy sessions.

Alisha enjoys working with adolescents and young adults and is passionate about providing families with early intervention during a critical time in their child’s development. She values building autonomy and assisting her clients in fostering meaningful relationships. Additionally, Alisha enjoys working across diverse cultural backgrounds and with people from various communities.

Alisha has previously worked in both hospital out-patient services and private practice, with people of all ages and varied presentations. She is a Medicare provider and holds registration with AHPRA (Reg #PSY0002272969).


Astrid Harris

Astrid harris

Biography under construction


Jane Cullen

Jane Cullen

Biography under construction


Rebecca Cefai (on leave)
Registered Psychologist

PGradDip Psychology (with Distinction); BA (Psychology and Cultural Studies)

Rebecca  Cefai

Rebecca is a registered psychologist with a passion for working with infants and children, as well as supporting the wellbeing of their parents and carers.

Rebecca has worked with children and families for nearly 10 years in a range of roles including as an educator in out of school hours care, school counsellor, supporting playgroups, group program facilitator, early childhood intervention therapist, and assessor. Rebecca has worked extensively with children with developmental delay and disabilities and is a strong advocate for the inclusion of all children across all settings including childcare, education, community, and mental health services.

Rebecca adopts a gentle approach to parenting and development which combines the latest scientific evidence in neurodevelopment and attachment theory, with responsive parenting, acceptance-commitment therapy, compassion therapy, and mindfulness techniques. Rebecca works with a range of early childhood issues including, but not limited to, infant and child mental health, developmental concerns, early parenting, sensitivity and anxiety in children, sleep difficulties, attachment, behavioural concerns, ADHD, transition to school, and toileting. Rebecca encourages a collaborative, strengths-based and family-centred approach where parents are equipped with information and workable strategies and solutions to support them to make decisions relating to their child that are aligned with their values. 

Rebecca also supports parents with the everyday challenges of parenthood, sustaining their caring role, coping with difficult thoughts and feelings, and having a child with additional needs. Rebecca seeks to provide a safe space for parents to explore the ups and downs of being a parent and be real about the challenges they face. Rebecca is focused on empowering parents to be gentle not only towards their children, but also themselves so they can be confident in their parenting role and grow with their child.

Rebecca is a Medicare provider and is registered with AHPRA. Rebecca is currently working towards becoming an accredited Neuroprotective Developmental Care (NDC) Practitioner with Possums Clinic to extend her skills in infant and perinatal mental health.


Jennifer Prasad
Registered Psychologist



Jennifer is a Registered Psychologist who strives to create a warm and safe space for her clients. Jennifer has been a practicing psychologist since 2013, and has worked in the disability and employment sectors, schools and daycare settings, multi-disciplinary clinics and private practice. She has extensive experience working with children and families who are funded by the NDIS.

Jennifer has a passion for working with children, adolescents, parents, and young adults. She works holistically, taking a culturally informed approach, when working with a range of presentations. Jennifer takes a special interest in child and adult attachment, parenting, intergenerational trauma and anxiety disorders.

In addition to holding a Bachelor of Psychology, Jennifer has completed training in Cognitive Behavioural Therapy (CBT), Dialectical Behavioural Therapy (DBT), Schema Therapy, Cognitive Processing Therapy (CPT), and Play Therapy.

When working with clients, Jennifer takes a person-centred, strength-based, collaborative approach resulting in an individually tailored evidence-based treatment plan.

Jennifer is registered with the Australian Health Practitioners Regulation Agency and can provide services under Medicare.


Josh Battin
Registered Psychologist

Master of Psychology (Prof); Bachelor of Psychology (Hons)


Josh is a registered psychologist with a passion for working with adolescents and adults. Josh strives to develop a therapeutic environment that prioritises collaboration, problem-solving, genuineness, warmth and creativity. Josh’s values-directed approach works beyond symptoms that are associated with worsened mental health. Josh places great emphasis on his clients walking away from therapy with new insight into their own wellbeing. Josh enjoys helping clients to find meaning in life and living their identified values.

Josh enjoys working across a wide range of issues including anxiety, occupational burnout, existential dread, depression, stress management, and emotional regulation problems. Josh has completed additional training in Acceptance and Commitment Therapy (ACT), Dialectical Behavioural Therapy (DBT), and Cognitive Behavioural Therapy (CBT).

Josh has a particular passion for treating problematic video game use. Josh assists clients who are at risk, or already gaming problematically, to find the optimal schedule for game time. This optimal schedule leads to gaming that facilitates more enjoyment and better performance without overplaying. Also, Josh bridges the knowledge gap of problem video game use in a way that avoids the backfire effect and improves communication at home.

Josh has worked in university community mental health services and private practice. Joshua is a Medicare provider and is registered with AHPRA.


Kayley Simmons
Registered Psychologist

PGradDip(PsychSci); BSc(Psych)


Kayley is a kind and caring Provisional Psychologist with a passion for supporting her clients through their challenges. She enjoys working with children, young people and adults across the lifespan.

Kayley has experience working with children, adolescents and adults with Intellectual Disabilities, Autism Spectrum Disorder, social skill development difficulties, behavioural concerns, and physical disabilities. Kayley also has experience completing cognitive and adaptive functioning assessments. Additionally, Kayley enjoys running group-based therapy sessions with a focus on social skill development.

Kayley has extensive experience working with the NDIS in both private and non-government settings. Kayley holds provisional registration with AHPRA (Reg# PSY0002294413).


Gregory Lazarus, MASPA
Couples & Family Therapist/Somatic Psychotherapist

B.A., M.A.(Psychotherapy), B.Theology, Dip. Con. Somatic Psychotherapy, Hakomi


Gregory has been a practicing psychotherapist for over 25 years and he now works predominately in the space of relationships.  Whether working with an individual or a couple he believes that in essence we are always working the relationship space, I to myself, I to others.  Gregory primarily works from a somatic (body) based perspective however he has trained in other modalities including psychoanalysis, REBT, Hakomi, and more recently in relationship modalities such as PACT (Psychobiological approach to Couples Therapy) and is well aligned with the work of Sue Johnson, Ester Perel and Dan Segal.

While working predominately as a couple’s therapist Gregory has special interest in complex trauma, experiential and body-oriented therapy, parenting and attachment.  Bonding goes from the cradle to the grave, staying close to a protective loved one is the main survival strategy for humans.  When working with couples he explores with them the tension between the need for security (love, belonging and closeness) and the need for freedom (erotic desire, adventure and distance) in their relationship.

Gregory uses and teaches mindful awareness and non-violent communication in his work with couples and works with them to develop the relationships that they want together.

Gregory is a Clinical member of the Psychotherapy and Counselling Federation of Australia, and a member of Somatic Psychotherapy Association of Australia


Margaret Carter
Therapy Assistant

Bachelor of Arts (Psychology)

Margaret Carter

Margaret has worked with children and families in a range of cross-cultural and educational setting for over 20 years and is now working towards a qualification in Diversional Therapy. This continues Margaret’s interested in creatively and collaboratively improving the life experience of individuals of all ages; working with clinicians to help children and families connect with their strengths and explore new ways to meet practical goals in sustainable ways.