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Dr Yanni Malliaris,  BSc. PhD., BICBT-CC

Dr Malliaris Professional Portrait
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  • Clinical Psychologist, Doctorate of the Institute of Psychiatry King's College London,
    University of London


  • Beck Institute CBT Certified Clinician

  • Founder & CEO of and EDO the Hellenic Bipolar Organisation

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Dr Yanni Malliaris graduated from Stirling University and UCLA with a first class honours degree in Psychology in 1999. During his undergraduate years he developed an interest in the psychosocial factors of affective disorders by studying with Professor Constance Hammen, and trained in behaviour modification with Professor Ivar Lovaas. He then went on to complete his military service in the Hellenic Airforce (2000-2002) and then worked as a research psychologist at the Institute of psychiatry, King’s College London (2002-2010), where he also completed his Doctoral PhD thesis under the supervision of Professor Dinesh Bhugra and Professor Tom Craig.

At the Institute of Psychiatry, he began his work with Professor Dominic Lam in the Psychology department and the Affective Disorders Unit. Following funding from the Medical Research Council he commenced his PhD thesis (2005-2010) where he explored the impact of sub-syndromal symptoms in the course of Bipolar disorder, and particularly the role of symptom variability in predicting relapse. His doctoral thesis became the basis of the novel diagnostic and symptom monitoring services now offered through It was Dr Malliaris' participants who appreciated the utility of having such services and making them available to all patients.

Upon successful completion of his work at the Institute, Dr Malliaris decided to continue with his research and clinical work on a private basis through, a pioneer private clinical practice delivering specialist diagnostic, treatment and training for Bipolar disorder and recurrent depression over the internet or locally in Athens, Greece . In addition, in 2008, Dr Malliaris founded in his father's memory (George Malliaris) EDO the Hellenic Bipolar Organisation, Greece's first and now premier NGO organisation for people with bipolar disorder and depression.

Dr Malliaris broad research interests are in the phenomenology and integrative treatment of Bipolar disorder, and particularly the factors that predict the course of the disorder. He is also interested in mental health informatics and conducts research on the role of new technologies for tracking the variable course of Bipolar disorder.


Finally, he practices Behavior therapy (and when needed cognitive therapy) for mood disorders and remains thankful to his late Professor (Dr Ivar Lovaas) for the training his received by one of the world's greatest and last radical behaviorists. He is proud for helping his patients to break their depressions as quickly as possible and helping them to maintain their stability for as long as possible.

As the Founder and CEO of BipolarLab, Dr Malliaris is responsible for all the programmes offered through the clinical practice. He continues to conduct many of the assessments and therapy required for the delivery of BipolarLab's care but he is also lucky to have the help of many talented colleagues who share the work. He loves supervising and training new bipolarlab members, and also developing new clinical programmes in order to meet the never-ending clinical needs of his bipolar patients.


In 2016, he founded, Greece's first and most premier home treatment programme. In Dimiourgia, BipolarLab's specialist integrative care is delivered on a daily basis in a very humane home-like environment for patients who are in greater need.

In 2018-9 Dr Malliaris started his most important project by becoming the father of two lovely boys. With the help of his loving wife he does the best he can to raise two healthy human beings.

Finally, during the covid years, Dr Malliaris developed further BipolarLab's comprehensive training programme that has helped to expand BipolarLab's clinical team, and most importantly has enabled us to assist a great number of low-income patients. The expansion of BipolarLab's clinical team is also helping significantly the premium level of care that BipolarLab has become known to offer worldwide.

In 2022, he became Greece's first Beck Institute CBT Certified Clinician (BI-CBT-CC), a considerable honour that recognises his life long effort to provide effective evidence-based treatment to his patients. 

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