Accessibility Tools

Become your best self.

Sometimes patterns of behaviour that aren’t serving us well can become entrenched and difficult to shift. It might be related to trauma in childhood, sexual abuse, and abusive relationship, or an eating disorder. Whatever the underlying cause, we can help you.

OClinic also offers additional, one on one support from highly experienced psychologists and behavioural therapists that we have carefully selected as being the absolute best at what they do. The sessions are tailored to your specific needs and circumstances, and are priced separately, with payment to the health professional directly. Medicare Mental Health Care plans may also be used to offset the cost involved. Contact us for more information.

Warren Artz

Warren Artz

Warren is a specialist weight management psychologist who has helped more than 4,500 people over the last 14 years with psychoeducation, guidance, and support after weight loss surgery. Unlike traditional psychologists, he works almost exclusively with those struggling with their weight. He believes strongly in setting realistic and achievable weight loss goals; and, he focuses on helping patients take rational behavioural control of their eating and lifestyle habits, whilst adhering to the demands of their weight loss procedure.

Warren is an ex-professional goalkeeper who has travelled the world as a soccer player and coach. He played in South Africa, England, USA, New Zealand, and Australia before becoming an AHPRA registered psychologist in 2008. He has undergraduate and graduate degrees in psychology from both the USA and Australia and has several published articles on the psychology of obesity and weight loss surgery.

Warren is a registered Medicare provider who accepts mental health care plans to support patients on their weight loss journey. He advocates building personal resilience as the key to achieving any goal. Personal challenges and experience have paved the way for a treatment approach that focuses on strengths, rather than weaknesses, and processes, rather than outcomes.

Warren can be reached on (04) 1340-4947 or on Facebook @warrenartzpsychology


Cal Paterson

Cal Paterson

Cal is one of Sydney’s leading Clinical Psychologists who has a broad range of experience with adults, couples, children and families in health, educational, community and private settings. He also specialises in assessing adolescent patients in preparation for weight loss surgery.

Founding Whychange Psychology in Croydon in Sydney’s Inner West in 2006, Cal is a supervising psychologist that mentors other health professionals on behalf of the Australian Psychological Society, the peak body for psychology in Australia. He is a pioneer in behavioural change. Using a variety of techniques including Cognitive Behavioural Therapy, Acceptance Commitment Therapy, he assists patients to release themselves from the burdens of the past and start living a happier, healthier life. Therapy is difficult, often in ways that you don’t expect. It is also very rewarding, when it is working well. Cal will help you release yourself from the trauma of the past and allow you to become the best version of yourself.

Cal is located at 53 Webb St Croydon and can be contacted through his website or on (02) 8357-0771


Lareena Brown

Lareena Brown

Lareena is a compassionate clinical psychologist and psychotherapist who has been providing therapy in private practice for over 13 years. She has a keen interest in the psychology of eating, movement and body image and is passionate about helping clients to be free from the harmful culture of dieting. She is also experienced in treating trauma, interpersonal difficulties, depression and anxiety, which she believes are often part of the picture in overcoming body image and eating problems.

A member of the Australian Psychological Society (APS) and APS Psychology of Eating, Weight and Body-image Interest Group, Lareena’s treatment approaches include Dialetical Behaviour Therapy (DBT), Mindfulness, Acceptance Commitment Therapy (ACT), and Cognitive Behavioural Therapy (CBT).

Having also trained as a psychotherapist, Lareena takes a holistic approach and works collaboratively with her clients to tailor therapy to the individual. Having experienced her own challenges with eating behaviours, Lareena firmly believes that the right support from a holistic team can help individuals to lead a rich life free from the tyranny of dieting and body image concerns. She typically works with women in a health-based psychological approach to weight management.

Lareena is based in Bondi Junction and can be contacted at [javascript protected email address] or (02) 8065-0326

Easy access from all areas of Sydney via the M1, M2 & M5 motorways