Our Clinical Team

We help people to Think. Feel. Perform. Better.

By combining a deep understanding of human behaviour, psychological research, practical business acumen and innovative thinking.

Our team of Psychologists understand Human Behaviour, Performance, Motivation, Wellbeing, and Potential.

Clinical Psychology

Based in Kent Town, less than 5 minutes from the Adelaide CBD, Human Psychology is one of Adelaide’s largest and oldest psychology practices. Due to a high demand of psychological services, currently there is a 8 week wait for new Mental Health Care Plan and Private clients.


Our experienced psychologists combine scientific psychological principles such as cognitive-behavioural therapy, positive psychology, acceptance commitment therapy, assessment tools and solutions focussed therapy with post-graduate qualifications, significant commercial experience and deep understanding of human behaviour and change processes.


Our team of psychologists and clinical psychologists are:

Masters Qualified


Committed to Professional Development

Trained in a variety of therapeutic modalities

Our Clinical Team


Samantha Young

Managing Director
Clinical Psychologist

Samantha brings a unique combination of senior management and commercial experience, psychological intervention skills and Masters-level formal education in both business and psychology to her clinical, training, coaching and consulting work. She has led large teams, advised CEOs and Boards on strategic issues and routinely provides consulting advice to private and public sector organisations on complex human resource matters, learning and development and leadership coaching and assessment.
Samantha has worked as a Consultant with Boston Consulting Group, Sales & Marketing Manager for The Body Shop and Strategy Manager for Myer GraceBros. Samantha holds Bachelor and Postgraduate qualifications in business and psychology, including a Masters Degree in Clinical Psychology and an MBA from Melbourne University.
Samantha is passionate about helping people to think, feel and perform better at individual, team and organisational levels. She is Managing Director of Human Psychology, one of Adelaide’s largest psychological services providers with a team of 17 people operating for over 10 years. Human Psychology’s mission is to help organisations and their people to embrace 21st century change by enhancing their self-awareness, building stronger and more cohesive relationships, increasing engagement, developing resilience and most importantly, caring for themselves and others.


Sally McEvoy

Clinical Operations Consultant

Sally specialises in trauma response – including High Profile and Rural/Remote traumas, management coaching, working with Aboriginal and Torres Strait Islanders and supporting individuals and organisations where mainstream services are inadequate or unavailable. She is particularly passionate about meeting the needs of rural and remote communities. Her ability to develop solutions that work for staff comes from her background in Social Work and Social Planning, as well as working with people from a range of diverse backgrounds, cultures and age groups, in clinical management positions including Education, Employee Assistance Programs, Trauma Response, Drug and Alcohol Dependency and Abuse, Aged Care and Youth At Risk. She brings her counselling and management knowledge to providing end to end services to meet needs and build the capacity and resilience of individuals and teams. She holds a Bachelor of Social Work and Planning.


Cheryl Ahrens

Clinical Psychologist

Cheryl has a Masters in Psychology (Clinical and Health) from the University of Adelaide and is a member of the Australian Psychological Society's College of Clinical Psychologists. She has worked extensively in both public and private sectors since 1994. Cheryl has a background working with people with complex mental health difficulties. She uses a range of evidence-based therapies in her work, with interests and training in the assessment and treatment of trauma, stress and anxiety, grief and depression, weight and body image concerns, and substance use issues. She also works with individuals and couples to provide relationship counselling. In addition, she is experienced in providing personal injury, motor vehicle accident and worker's compensation assessment and treatment.


Stephen Holmes


Stephen holds a Master of Education (Counselling Psychology) degree and is a psychologist with general registration. He is a member of the Australian Psychological Society and accredited member of the International Association of Applied Neuroscience.

He incorporates learning from neuroscience into his therapeutic work within a strength based, solution focused framework. His focus is assisting individuals and families to develop their inner resources to respond positively and creatively to developmental and complex challenges across the lifespan: interpersonal relationships, school related issues, self-regulation, mood management, trauma and self-confidence.

He is experienced and skilled in psychological assessment, including educational assessment.

He has also worked closely with agency executive to incorporate best practice, well-being strategies into responses to critical incidents to support staff who have experienced trauma.


Stephanie Zylstra

Clinical Psychologist

Stephanie holds a Master of Psychology (Clinical) and has gained experience within community mental health, workplace rehabilitation, youth mental health, and private practice. Stephanie holds a genuine respect and positive regard for clients and their individual circumstances, and strongly believes in a person-centred approach. She is passionate about identifying and developing people’s strengths, working collaboratively to guide and encourage positive change, and ensure client goals are the forefront of therapy.
Stephanie uses a range of evidence-based approaches, including Cognitive Behavioural Therapy (CBT), Acceptance and Commitment Therapy (ACT), Cognitive Processing Therapy for PTSD and brief solution-focused therapy. Stephanie works with adolescents 16 and up across a range of issues, including post traumatic stress and adjustment, depression, anxiety and panic, stress, sleep difficulties, assertiveness and self-esteem difficulties, and grief and loss. Stephanie is currently seeing clients under the Employee Assistance Program, and can provide educational and IQ assessments for both children and adults.


Dr Helen Smith


Helen is a registered psychologist of long-standing, having undertaken her original psychology training in the early 1990’s. Since that time she has furthered her development in a variety of areas. She was awarded an MBA at Mt Eliza Business School and holds a PhD in Business and Management. Helen’s work history in South Australia, and interstate, reflects her broad range of expertise.

Helen works with a wide range of presenting issues, however has a particular interest in working in the following areas:
• Relationship counselling and supporting couples and families through major life events
• Working with individuals, using positive psychology and a strengths-based perspective, to improve psychological well-being and resilience
• Helping individuals experiencing symptoms of anxiety and depression
• Leadership coaching, organisational development, change management and training and facilitation


Anna O'Grady


Anna is a registered Psychologist holding a Masters in Counselling. She has 15 years' experience in public and private organisations supporting clients across the lifespan.
Work­­­ing from a strength’s based perspective, Anna is passionate about instilling hope and supporting her clients to reach their full potential. Anna values maintaining a strong therapeutic relationship, thereby allowing her clients to feel safe, while exploring their concerns. She enjoys teaching her clients how to cultivate psychological awareness and resilience in the face of life’s challenges, propelling them towards a more meaningful and fulfilling life.

Anna draws upon various therapies including Acceptance and Commitment Therapy (ACT), Cognitive Behavioural Therapy (CBT), Solution Focused Therapy and Positive Psychology. She supports clients from 18 years of age with issues including anxiety/stress management, depression, work stressors, relationship issues/conflict, grief/bereavement, anger management, self-esteem, life crises, work/life balance and body image. Anna is offering counselling through the Employment Assistance Program.­­


Janet Devlin


Janet has more than thirty years’ experience in psychiatric research and hospital and community clinical psychology roles in the private, public and not for profit sectors across Australia. A former Police Officer and Police Psychologist, she has worked on several Royal Commissions and was previously the Clinical Director for the NT Police, Fire and Emergency services critical incidents. She has also worked extensively at the forensic interface with young offenders and adults in criminal justice and has worked with a range of organisations in a medicolegal capacity.

She works across the age spectrum and has a special interest in youth mental health as well as those in their senior years. Her therapeutic approach is trauma informed, working within an attachment model of psychosocial development informed by neuroscience. She previously managed a national early intervention programme for schools, the National Suicide Prevention Intervention and various state and territory based mental health initiatives.

Janet has managed sexual assault, child protection and mental health services, including in rural and remote settings, reflected in her appointment as rural Mental Health Academic at UniSA, and she has worked as the NSW Health clinical educator. She has vast experience in working with those from CALD backgrounds including Aboriginal & Torres Strait Islander, Maori, Pacific Islander, migrant and refugee communities where she finds a narrative therapeutic approach particularly helpful.


Leah Frost


Leah is a registered Psychologist holding a Master of Psychology (Organisational and Human Factors) and is a member of the Australian Psychological Society (APS).

With a diverse background working across a variety of industries, she supports adult clients and has experience providing support across a wide range of presenting psychological and lifestyle issues including anxiety, depression, grief/bereavement, trauma, pain management, work/life balance, interpersonal conflict and relationship issues.

Incorporating evidence-based psychological interventions such as Cognitive Behavioural Therapy (CBT), Acceptance Commitment Therapy (ACT), and Positive Psychology, Leah believes strongly in weaving these with practical, problem solving, solutions-focussed approaches and providing a therapeutic space that allows individuals to learn about themselves in a relaxed, accepting environment.

Leah has experience in providing individual and management support through Employee Assistance Programs (EAP) and has experience facilitating training programmes and workshops aimed at increasing knowledge and providing support to teams and organisations in managing mental health, wellbeing and resilience in the workplace.


Carla Morelli


Carla is an Organisational Psychology Registrar, holding a Master of Psychology (Organisational and Human Factors) and is a member of the Australian Psychological Society’s College of Organisational Psychologists.

With a background working across a variety of industries and a diverse range of value and cultural systems, Carla has a passion for providing a warm, empathetic, and collaborative approach to support clients in achieving their full potential and living a fulfilling and meaningful personal and professional life.

Her approach to therapy draws from Cognitive Behavioural Therapy (CBT), Acceptance and Commitment Therapy (ACT), Schema Therapy, Cognitive Processing Therapy (CPT), relaxation and stress management techniques, change management, communication skills, and career and performance coaching to provide holistic treatment for individuals, teams, and organisations.

Carla has experience working with a variety of mental health presentations such as depression and anxiety, as well as individual and management support through Employee Assistance Programs (EAP), leadership and team development, critical incident debriefing, workshop facilitation, and organisational change.


Effie Georgiadis


Effie has worked with vulnerable groups in the community sector for over 10 years, in relation to their mental health. She uses a holistic, person-centred approach when working with individuals.

With a strong belief that therapy starts from within, Effie strives to make the therapeutic experience as positive, honest and as transparent as possible. She is well versed in Cognitive Behavioural Therapy, Emotional Regulation Therapy, DBT, Schema Therapy, ACT and am a qualified EMDR therapist.

Effie welcomes both adult and children (9 years and up) referrals from diverse cultural backgrounds and is experienced in working with varying presentations including:
Depression & Anxiety
Trauma/ Relationship issues
Anger & Behavioural Issues
Personality Disorders
Substance Misuse
Sleep Disturbances
Post-Traumatic Stress Disorder


Konstantine (Koz) Lebessis

Clinical Psychologist

Konstantine (Koz) Lebessis is an experienced Clinical Psychologist. He has a Bachelor of Arts (Adelaide University), Bachelor of Psychology – Clinical and Educational Psychology (Murdoch University), and Master of Applied Psychology – Clinical and Educational Psychology (Murdoch University). He is registered as a Clinical Psychologist with the Australian Health Practitioners Regulation Agency (AHPRA).

Konstantine is authentic, practical and solution driven with a good sense of humour and substantial life experience. Since 1992 he has worked for various private and government agencies and tertiary institutions in the areas of adult mental health, child protection and crisis management. He has worked with adults, adolescents and children with a range of mental health, emotional and behavioural concerns and issues including anxiety and panic attacks, depression, anger management, stress and tension, unresolved grief, fears and phobias, life adjustment, relationship challenges, and children’s behaviour. He has a specific interest in men’s mental health issues and concerns.

His treatment approach is skilled and focused to the specific needs of the individual to make realistic and sustainable changes to move forward utilising evidence based Behavioural and Cognitive Behavioural Therapy techniques.


Andrew Mügge

Senior Mental Health Clinician

A former psychiatric nurse Andrew changed his career direction, working in Local Government Community Development and Environmental Services in senior management positions in metropolitan Adelaide for a couple of decades, gaining a BA in psychology and an MBA. In his middle years Andrew returned to university and completed Masters’ Degrees in Mental Health Science (Flinders University: Department of Psychiatry), and Social Work. An associate of the Australian and NZ Association of Psychotherapy, Andrew has worked as a Mental Health Clinician with NGO’s since early 2009 using a mix of evidence based second and third wave cognitive therapies: CBT and Acceptance and Commitment Therapy with Mindfulness. He has worked mainly with adults across a broad spectrum of mental health disorders, including depression and anxiety, complex trauma and PTSD, OCD, personality disorders, mood disorders, psychotic illnesses, co morbid alcohol and drug issues, and interpersonal relationship crises.


Kirby Michaelides

Senior Mental Health Clinician

Kirby is an AASW registered Social Worker with over 10 years’ experience in the field of Mental Health and Wellbeing. She is a certified practitioner of Cognitive Behavioural Therapy and has been delivering solution-focused brief-model-therapy at a Senior Level within the setting of EAP for the past 3 years.

In addition to providing EAP counselling for a large portfolio of companies and departments Nationally, she has delivered more bespoke services including career assistance, workplace behaviour coaching and proactive manager assist, as well as conducting a suite of clinical assessments.

Kirby uses many evidence-based approaches including Acceptance and Commitment Therapy (ACT), Solution Focused Brief Model Therapy, Schema Therapy and Narrative Therapy. Kirby has worked in Private Practice delivering therapy for marriage and relationships. A practice informed by her training in the esteemed Gottman Method.

Kirby has significant experience and expertise working with young people aged 12< in areas of Mental Wellness, Trauma, anxiety, depression, ADHD and ASD. Her approach aims to assist clients to develop and optimise their ability to learn, as well as resilience building, developing emotional intelligence, practising self-care and learning to communicate effectively.

Psychologist Adelaide

Jane Turner Goldsmith


Jane is a registered (general) psychologist with a background in health, education and counselling psychology. She is especially interested in promoting mental and physical health and well-being and in nurturing people’s creativity - both in life and as applied to the challenges they may be facing in life. She is a trained and experienced teacher and workshop facilitator. She has most recently worked in a University counselling service and with international students, as well as with employees under the Employee Assistance Program.

No Waitlists

Experienced Clinical Psychologists

Central Adelaide Location

Evidence Based Therapies

Talk to us and see how we can help you

Our team of Psychologists and Clinical Psychologists help people to Think. Feel. Perform. Better. By combining a deep understanding of human behaviour, psychological research, practical business acumen and innovative thinking. Phone: 1300 277 924

Think. Feel. Perform. Better.