Dr John Janssen, Consultant Neurologist
Dr John Janssen
Consultant Neurologist
Dr John Janssen BSc MBBS MD FRCP
Consultant Neurologist

Areas of expertise
- Headache
- Tia
- Stroke
- Alzheimer's disease
- General neurology

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Address
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Chelsea Outpatient Centre
280 King's Rd, London, SW3 5AW
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Chiswick Medical Centre
Bond House, 347-353, Chiswick High Rd, London, W4 4HS
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The Lister Hospital
Chelsea Bridge Road, London, SW1W 8RH
About Dr John Janssen
GMC number: 4034748
Year qualified: 1993
Place of primary qualification: University of London
Dr Janssen is an experienced neurologist with broad interests including headache, migraine, transient ischaemic attack (TIA), stroke, memory disorders, and all general neurological symptoms ranging from tingling and numbness to tremor.
Dr Janssen has been a consultant neurologist at Chelsea and Westminster Hospital, Royal Brompton Hospital, and Charing Cross Hospital since 2005. In 2015, he was appointed clinical lead for TIA and neurology, and later became the service director for neurology and stroke at Chelsea and Westminster Hospital. He leads the clinical team at Chelsea and Westminster, personally provides acute neurology input to the Royal Brompton Hospital, and contributes to stroke services at Charing Cross Hospital, the leading hyperacute stroke service in the UK. He is a GMC-recognised trainer and a keen teacher of medical students and junior staff.
In the independent sector, Dr Janssen prides himself on providing a personal service with clinics at HCA's Lister Hospital Chelsea Outpatient Centre and Chiswick Medical Centre. He is also co-chair of HCA's joint neurology and neuro-rehabilitation council, part of HCA's Neurosciences department.
Dr Janssen's areas of expertise include the treatment of headaches, TIA, stroke, memory disorders, Alzheimer's disease, cognitive impairment, and general neurology. He is dedicated to delivering the best possible care to his patients and ensuring the safe and efficient operation of the hospitals where he practices.
Dr Janssen's commitment to his field and his patients is evident in his extensive roles and responsibilities, making him a highly respected figure in the medical community.
Areas of expertise
- Headache
- TIA
- Stroke
- Memory disorders
- Alzheimer's disease
- Cognitive impairment
- General neurology
- Dizziness
- Balance
- Dementia
Professional memberships

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Articles by Dr John Janssen
A decade of pre-diagnostic assessment in a case of familial alzheimer's disease: tracking progression from asymptomatic to mci and dementia
Exome sequencing reveals a novel partial deletion in the progranulin gene causing primary progressive aphasia
Csf neurofilaments in frontotemporal dementia compared with early onset alzheimer’s disease and controls