Who We Are
We are a multidisciplinary medical and allied health team providing care for children, adolescents and adults.
Our clinicians work collaboratively across psychiatry, paediatrics, endocrinology, psychology and counselling to provide thoughtful, evidence-based care tailored to each individual.
At Metanoia Health, we focus on understanding the whole person, supporting meaningful and lasting improvements in mental and physical wellbeing.
Dr Daniel Tosson
Consultant Psychiatrist (Adult)Dr Daniel Tosson is a specialist adult psychiatrist (RANZCP) with extensive experience supporting adults with a wide range of mental health concerns. He is known for his compassionate, person-centred approach, taking the time to listen and work closely with each person to create a treatment plan tailored to their individual needs and goals.
He believes in a holistic approach to care and often collaborates with other healthcare professionals, support systems, and family members where helpful. His evidence-based treatments focus on supporting both mental health and overall wellbeing.
Dr Tosson provides general adult psychiatry services for conditions including depression, anxiety, obsessive compulsive disorder (OCD), and binge eating disorder. He also provides adult Attention-Deficit/Hyperactivity Disorder (ADHD) assessments and treatment.
Monica Gayed
Monica is an experienced clinical psychologist who enjoys working with people from all walks of life. She has a warm, down-to-earth approach and creates a safe space where clients feel heard, understood, and supported.
She adapts her therapy to each person’s needs and uses evidence-based approaches, including Cognitive-Behavioural Therapy (CBT), Dialectical Behavioural Therapy (DBT), and Acceptance and Commitment Therapy (ACT).
Monica has worked in both public and private settings, including running DBT groups, providing individual and group therapy, and working at the Gambling Treatment and Research Clinic at the University of Sydney.
She is also a board-approved supervisor and currently has availability for supervision.
Clinical Psychologist
Dr Yvette Mikaheal
Endocrinologist Dr Yvette Mikaheal is a specialist endocrinologist and Fellow of the Royal Australasian College of Physicians (FRACP). She has expertise in diabetes (type 1, type 2, and gestational), women’s health, osteoporosis, thyroid, adrenal, and pituitary disorders.
She undertook specialist endocrinology training across accredited public health services and is actively involved in research. Dr Mikaheal is committed to evidence-based care and works closely with patients to develop practical, individualised treatment plans tailored to their health goals.
She takes a patient-centred and collaborative approach, empowering patients to understand their condition and actively participate in their care and long term health.
Dr Frank Chen
Dr Frank is a general Paediatrician with an interest in developmental & behavioural difficulties such as Attention Deficit Hyperactive Disorder (ADHD). He also enjoys helping his patients with a wide range of paediatric problems including asthma, bed wetting, feeding, and growth concerns.
He takes time to get to know each child and family to fully understand their concerns and expectations. Frank assists families to coordinate services for children with complex care needs and works in collaboration with parents, GPs, schools, psychologists, dietitians, occupational therapists, and other allied health professionals to achieve the best outcomes for every child.
Frank is fluent in Chinese and is able to provide consultation in Chinese or English.
Paediatrician 
Vivijana Mitrevski
Vivijana Mitrevski is a qualified and registered Professional Counsellor who loves supporting people of all ages, from 7 - 70,. She creates a warm, safe, and non-judgmental space where clients feel heard, understood, and supported in finding clarity and making meaningful changes in their lives.
She has experience guiding clients through personal, relational, and life-stage challenges, using evidence-based approaches such as Cognitive Behavioural Therapy (CBT), Internal Family Systems Therapy (IFS), Solution-Focused Therapy, Narrative Therapy, and Art Therapy. Vivijana takes a holistic approach, focusing on each person’s strengths, interests, and goals to tailor therapy to what will work best for them.
Vivijana works with clients on a wide range of concerns, including social and generalised anxiety, emotional regulation, confidence building, parenting and family challenges, relationship and conflict issues, workplace and career guidance, motivation, study and organisational strategies, and public speaking.
Counsellor