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.

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

Experienced

Committed to Professional Development

Trained in a variety of therapeutic modalities

Our Clinical Team

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Darren McGeachie

Senior Customer Care Manager
& Senior Consultant

Darren McGeachie holds qualifications in law and social work. Following many years of working in private and government legal practice, he moved into the area of mediation, team services, organisational consultancy and the management of Employee Assistance Program (EAP) contracts.

Darren is committed to assisting individuals, teams and organisations to fulfil their potential and to foster wellbeing. He specialises in conflict resolution, developing high functioning teams and in management coaching. He is a past Vice President of the EAPAA (Employee Assistance Professionals Association of Australasia), is an accredited workplace mediator and holds the Certificate IV in Workplace Assessment. He is also accredited in the Belbin Team Roles and offers training in the area of Case Notes.

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Mark Gaye

Clinical
Manager

A versatile AASW Mental Health accredited social worker dedicated to building constructive relationships with diverse individuals and a passion for providing quality support to people experiencing mental and emotional distress. Mark offers demonstrated experience in clinical and therapeutic counselling, case management and community engagement, an understanding of intercultural communication and holds a bachelor’s degree in international relations.

Mark is a competent Mental Health Clinician with years of experience working from several evidence-based approaches including Cognitive Behaviour therapy, Dialectical Behaviour therapy, Acceptance Commitment therapy, Solution Focus Brief therapy, Cognitive Processing therapy and Schema therapy. He has specific interests in Trauma, PTSD, youth mental health and working with people from a Cultural and Linguistically Diverse backgrounds.

With almost 4 years of experience providing mental health support to people in a migrant specific employment program, Mark has developed a strong interest for supporting people facing mental and emotional barriers to sustaining meaningful employment. This includes exploring interpersonal challenges within a workplace context.

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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.

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Dr Perry Morrison

Psychologist

Perry worked as an academic psychologist in four universities over 18 years and as a registered practicing psychologist for 26 years. He holds an honours degree from the University of Queensland and PhD in Psychology from the University of New England.

Despite the length of Perry's career he still finds every client interesting and special in their own way. We each have a history and context that is unique and it is a privilege to assist people through difficult parts of their lives.

Perry's approach relies on developing high levels of trust and communication. He is quite solution focused and works with a range of cognitive behaviour and related therapies built on top of a foundation of trust and respect.

Part of the richness of human relationships is also our capacity to enjoy each other’s company and to have fun. Even though clients are often struggling, Perry likes to encourage a sense of optimism and hope to build the best future possible for his clients.

As always, the key is true listening, mutual respect, partnership and using strategies and approaches that support positive change and fresh perspectives.

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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.

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Rebekah Antonopoulos

Clinical Psychologist

Rebekah holds a Master of Psychology (Clinical) at the University of Adelaide and is registered as a Clinical Psychologist with the Australian Health Practitioners Regulation Agency (AHPRA).

Rebekah has worked across various government and private sectors, gaining experience working with youth and adults with complex mental health difficulties. Rebekah uses a range of evidence-based approaches including Cognitive Behavioural Therapy, Dialectical Behaviour Therapy, Acceptance and Commitment Therapy and Solution-Focused Brief Therapy.

Rebekah is passionate about working with people aged 16 and above using a collaborative, person-centred approach to achieve their goals. She is experienced in working with depressive and anxiety disorders, trauma/PTSD, personality disorders, emotional and behavioural concerns, interpersonal conflict or relationship issues, stress management, building resilience/coping skills, improving wellbeing and enhancing work-life balance.

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Stephen Holmes

Psychologist

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, wellbeing strategies into responses to critical incidents to support staff who have experienced trauma.

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Megan Semczuk

Psychologist

Megan is a registered Psychologist with a Master of Psychology (Forensic). She has 10 years’ experience in public and private settings, including working with adults and youth in correctional settings, refugees and asylum seekers, community-based drug and alcohol rehabilitation and physical, intellectual and psychosocial disabilities under the NDIS.

Megan can assist with those 18+ experiencing depression, anxiety, trauma, stress, drug and alcohol addiction, life transitions, grief and loss, anger management, self-esteem, perfectionism, emotion regulation, behavioural concerns, workplace issues, relationship issues and various other mental health concerns.

Megan has a relaxed, warm, empathic, trauma informed approach. Her focus is on building a positive therapeutic relationship and cultivating a safe therapeutic space. Megan’s practice is collaborative, non-judgemental and tailored towards the needs of her clients. She is passionate about empowering individuals to gain personal awareness into their own patterns of behaviour and build coping skills overcome obstacles and strengthen their resilience towards life challenges.

Megan utilises evidence-based practices including Solution-Focussed Brief Therapy, Strength-Based Approaches, Cognitive-Behavioural Therapy, Schema Based Therapy, Cognitive Processing Therapy, Mindfulness-Based Cognitive Therapy. Megan is sometimes accompanied by her sidekick, Mocha, the (Border Collie) Therapy Dog.

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Lisa Nguyen

Senior Mental Health Clinician

Lisa is an Accredited Mental Health Social Worker with postgraduate training in trauma therapies. She brings a client-centred, culturally responsive approach to her work, and is deeply committed to creating a safe and inclusive space for people from all walks of life.

Lisa has worked across the public, private and non-government sectors supporting young people, adults and families navigating challenges such as trauma, relationship difficulties, mental health concerns, cultural identity issues, homelessness and experiences within the LGBTIQA+ community. Her work is grounded in respect, curiosity and a strong belief in each person’s capacity for healing and growth.

With a trauma-informed lens, Lisa tailors her approach to meet each person’s unique needs, drawing on evidence-based therapies such as cognitive behavioural therapy (CBT), dialectical behaviour therapy (DBT), cognitive processing therapy (CPT), eye movement desensitization reprocessing (EMDR) and schema therapy.

Lisa is passionate about helping individuals reconnect with what matters most – whether that’s a sense of identity, relationships, culture or community and supporting them to build meaningful, connected lives.

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Kirby Michaelides

Senior Mental Health Clinician

Kirby Michaelides is an AASW-accredited Mental Health Social Worker, Gottman-Trained Relationship Therapist, and Certified ADHD Clinical Services Provider with over 15 years’ experience in mental health and wellbeing. Kirby has been delivering solution-focused brief-model therapy at a senior level within the setting of EAP for the past six years, prior to which she worked in private practice as well as in the government and NGO sectors.

She is passionate about creating neurodiverse-friendly workplaces, supporting employees with ADHD and other neurodivergent profiles to thrive in professional settings. Kirby uses many evidence-based approaches including Cognitive Behavioural Therapy (CBT), Mindfulness-Based Cognitive Therapy (MBCT), Narrative Therapy, and Acceptance and Commitment Therapy (ACT). She also incorporates neurodiversity-affirming approaches, recognising ADHD as a natural variation in human cognition rather than a disorder to be 'fixed'.

With special interest in both relationships and parenting, Kirby has worked extensively with couples and families to help strengthen connection, resolve conflict, and build deeper understanding. She also provides parent coaching, empowering families to navigate the unique challenges of raising children (particularly the neurodiverse) while fostering strong, healthy parent-child relationships.

Her expertise extends to adolescents (12+) particularly in the areas of mental wellness, trauma, anxiety, depression, and ADHD, ensuring they can navigate both educational and personal challenges with confidence.

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Anna O'Grady

Psychologist

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 and work/life balance. Anna is offering counselling through the Employment Assistance Program.­­

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Nina Sabetzadeh

Mental Health Clinician

Nina brings over 10 years of experience working across a range of clinical settings, including Child Protection, public mental health, and private practice, supporting adults, adolescents, and young children.

She is trained in a variety of evidence-based therapies, such as Cognitive Behavioural Therapy (CBT), Acceptance and Commitment Therapy (ACT), Mindfulness-based approaches, and Solution-Focused Therapy. Nina thoughtfully adapts these approaches to suit each individual’s unique needs.

Central to her work is a deep respect for each person’s story. Nina believes that truly listening and understanding are essential to gaining a shared understanding of what lies beneath distress.

With a warm and gentle approach, she places great importance on building a therapeutic relationship founded on trust, respect, and compassion. Her aim is to provide a safe and supportive environment where positive change can take root.

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Samantha Munro

Senior Mental Health Clinician

Sam is an Accredited Mental Health Social Worker bringing a wealth of clinical experience from over 25 years.

Sam has extensive experience working collaboratively with SA Police, Child Protection and Correctional Services. She has worked across government and non-government sectors, where she developed a passion for supporting women recovering from trauma.

Early in Sam’s career she relocated to a remote area of South Australia, where she lived and worked with Traditional Aboriginal Communities for two years. This role involved working with Aboriginal and non-Aboriginal families, where providing community and social services, and resources was the primary goal.

Sam’s approach to clinical work is person-centred and trauma-informed, using a range of Interventions including Solution-Focused Therapy, Cognitive Behavioural Therapy, Mindfulness and Relaxation Techniques and Self Compassion. Sam is currently developing her training and practice related to Cognitive Processing Therapy for PTSD.

Sam supports clients 16+ with anxiety, depression, bereavement, relationship loss, workplace issues, domestic violence, sexual assault and childhood sexual abuse, and young adults experiencing mental health challenges.

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Erin Levy

Mental Health Clinician

Erin is a passionate Accredited Mental Health Social Worker with postgraduate training in family and systemic therapy.

She has experience in public, private and non-government sectors supporting clients across the lifespan with complex issues including interpersonal relationships, domestic and family violence, and mental health difficulties.

She enjoys working with clients of all ages, supporting individuals to build meaningful lives through connection to work, play, family, and community.

Erin uses an integrative, trauma-informed approach drawing on cognitive behavioural therapy, dialectical behaviour therapy, cognitive processing therapy, emotionally-focused therapy and family and systemic therapy.

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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.

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Dr Helen Smith

Psychologist

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 wellbeing and resilience
• Helping individuals experiencing symptoms of anxiety and depression
• Leadership coaching, organisational development, change management and training and facilitation

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Shankari Sundaram

Senior Mental Health Clinician

Shankari is a member of the Australian Association of Social Workers (AASW), and holds a Master’s degree in Social Work from Flinders University and a Diploma of Counselling from Bower Place. She also holds an MBA and a Bachelor of Commerce.

Shankari’s experience includes working therapeutically with victims of crime who are affected by acute and lingering effects of trauma and stress. She has also worked in the disability sector in various programs in therapeutic and case management roles. Shankari uses tools from evidence-based modalities like mindfulness and compassion focused practices, Cognitive Behaviour Therapy (CBT), Acceptance and Commitment Therapy (ACT), Solution-Focused Brief Therapy (SFBT), exposure therapies to reduce PTSD or PTSD-like symptoms, Radical Exposure Tapping (RET) and somatic interventions. She uses these approaches to assist clients with concerns like sleep disturbances, anxiety, depression, anger management, grief and loss, LGBTIQ+ matters, sex and intimacy, interpersonal problems in varied contexts, and goal setting to help navigate life changes or find deeper contentment within current circumstances.

Shankari endeavours to tailor her approach to each client’s individual needs and preferences by listening deeply and creating a safe space that fosters further exploration.

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Heidi Lichtenberg

Mental Health Clinician

Heidi is an AASW Mental Health Accredited Social Worker who brings a wealth of knowledge and experience to her practice. She began her career in Child Protection services in 2009 where her passion for early intervention and accessible therapeutic support grew. Heidi completed her post graduate studies of Cognitive Behaviour Therapy in 2019 and undertook her practicum in a hospital setting providing short term CBT interventions. Heidi obtained additional counselling training through the Australian Institute of Professional Counsellors majoring in her areas of interest including mindfulness- based therapies and child development and parenting skills prior to starting in an EAP role in 2021. Heidi’s therapeutic approach focuses on her clients’ strengths, understanding the systems they operate within, providing solution focused strategies and incorporating CBT, ACT and mindfulness practices to enhance the wellbeing of her clients. Heidi prides herself in being a lifelong learning and remaining up to date with the evidence-based research in the mental health field.

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Alana Settecasi

Mental Health Clinician - Unavailable

Alana is a dedicated Social Worker (AASW) with training and expertise in Psychology and Cognitive Behaviour Therapy (CBT) with a diverse background working with adults across government, non-profits, and private sectors.

Alana's professional focus centres on careers counselling, workplace training, and vocational rehabilitation, where she employs a tailored approach to support clients. Her proficiency extends to addressing complex challenges, including suicidal ideation, chronic health conditions, and family-related issues impacting personal and professional life.

With extensive experience collaborating with the Australian Defence Force and Department of Veterans, Alana has navigated both clinical roles and high-level management within the Federal Government. Her comprehensive understanding encompasses leadership dynamics, risk management, and intricate clinical presentations.

Alana values a collaborative approach with clients to ensure they feel safe, supported, and able to identify their strengths, build confidence and feel empowered to take ownership of their mental wellbeing and independence.

Alana adopts a holistic and compassionate approach, incorporating evidence-based modalities such as CBT, ACT, Solution-Focused therapy, mindfulness, and psychoeducation. She is dedicated to ensuring the wellbeing of clients by implementing practical and effective interventions to attain successful outcomes.

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Stephanie Zylstra

Clinical Psychologist - Unavailable

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.

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Rosalind Date

Psychologist - Unavailable

Originally from overseas, Ros has provided EAP and Critical incident services to South Australians for the past 10 years. She is registered as a General Psychologist and has concern for helping people rebuild their lives following setbacks. Her approach is pragmatic and down to earth given her prior experiences working in agriculture and mining. She welcomes people from diverse backgrounds and people from regional areas.
Ros is well placed to receive clients over 16 years of age and is open to seeing anyone with general problems at work or home. More specifically to support those experiencing personal problems such as stress, anxiety, depression, migration, disability, divorce, trauma and injury. Or any work-related matters, such as career planning, career transitioning, work satisfaction, job insecurity, manager/ employee relations, management consulting and or work conflicts.
Her approach is holistic and she leans heavily towards positive psychology, strengths and person-centred approaches. Modalities she draws from include: Solution focused, Schema therapy, CPT, CBT, Hypnotherapy, Trauma Informed approaches.

Why choose Human Psychology?

No wait
lists

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.