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Dr John Heffernan
Consultant Addiction Psychiatrist

Dr John Heffernan

Dr John Heffernan works at the Priory Hospital Woking and in the NHS in Enfield within the drug and alcohol service in London. He values the contribution that both roles make to his practice and what he can offer the patients he works with.


Dr John Heffernan qualified from Guy’s and St Thomas’ Medical School in 2000 and specialised in psychiatry from 2001, and entered higher specialist training in general adult psychiatry, with sub-specialty training in addiction and rehabilitation psychiatry. His first consultant post was in a community mental health team in the NHS 2011-2014. He studied composition and composing in 2015 and from 2016 has been working in addiction psychiatry since. He appreciates the importance both of art and creativity, spirituality and science in the practice of medicine.

Dr Heffernan has experience in various psychotherapies, including psychodynamic psychotherapy, cognitive behavioural therapy, mindfulness practices and motivational interviewing.

He has taught medical students, doctors in training, GPs and allied health professionals throughout his career.

Research interests

Dr Heffernan has experience of randomised controlled trials and conducting qualitative research in addictions. He has conducted research on supported employment in mental health settings and published clinical service evaluations.

clinical articles and research papers

I work with patients suffering from addictions and associated mental health problems including mood, anxiety and trauma related disorders. I value working with patients throughout their treatment journey and value the role I can make in their recovery. Addiction psychiatry involves working with a combination of biological, psychological and social factors and I believe in taking a holistic approach to treatment and value the role of peer, family and mutual aid support.

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