Por qué es un doctor de primer nivel/Professional statement/Perché è un dottore di prim’ordine

Dr Dennis Chan is a highly qualified neurologist with vast experience treating a range of neurological disorders including headache, Parkinson's disease, epilepsy, and multiple sclerosis. He is an internationally recognised expert in dementia, specialising in the diagnosis of Alzheimer's disease, mild cognitive impairment, and other memory disorders. His private clinics are located at Spire Gatwick Park Hospital, Spire Montefiore Hospital in Hove and The North Downs Hospital in Caterham. Dr Chan's NHS clinics in memory disorders and general neurology are held in Cambridge and Sussex.

Dr Chan qualified in medicine from the University of Cambridge. In addition to his medical degree, he holds two research doctorates. He obtained a PhD under the supervision of Professor John O'Keefe (University College London), who was later awarded the 2014 Nobel Prize in Physiology or Medicine, and an MD under Professor Rossor, Institute of Neurology, London. From 2014 - 2019 he was based at the University of Cambridge and in 2019 he moved his NHS work back to Sussex, and his academic work back to UCL.

Dr Chan's research into Alzheimer's disease has received extensive media coverage, with articles in all the leading national newspapers (including The Times, Independent, Guardian, Daily Mail, Daily Telegraph) as well as interviews on BBC national TV, the BBC Radio 4 Today programme and CBS TV in the USA. His work has been published in the top research journals including Nature and The Lancet. Dr Chan receives research grant funding from the Medical Research Council, Wellcome Trust, Alzheimer's Research UK, Alzheimer's Society, Innovate UK, and the Alan Turing Institute. His research has been extensively covered by the national and international news media. 

Dr Chan is also leading UK research into cognitive impairment (brain fog) as part of long Covid. In July 2021 he was awarded £1.2 million by the National Institute of Health Research to study and treat this problem.

Dr Dennis Chan is happy to offer virtual consultations. To request an appointment, please click the blue eConsultation button on the profile. 

For more information about Dr Chan, go to: www.dementianeurologist.co.uk 

Especialista en

Alzheimer's disease

Index:   ...



Memory disorder

What is memory loss? Memory loss, also known as ...

Movement disorders

What are movement disorders? Movement disorders refer to either an excess of movement or an impairment of movement. There ...


Index:  &...


What is Parkinson's? Parkinson's disease is a ...

Enfermedades, Pruebas y Tratamientos

  • Abnormal gait
  • Alzheimer's disease
  • Amnesia
  • Ataxia
  • Cerebrovascular disease
  • Chronic headache
  • Cluster headaches
  • Cognitive impairment
  • Cognitive stimulation therapy
  • Dementia
  • Dizziness
  • Epilepsy
  • Headache
  • Medicolegal
  • Memory disorder
  • Memory exercises
  • Memory test
  • Migraine
  • Mild cognitive impairment (MCI)
  • Movement disorders
  • Multiple sclerosis
  • Neuralgia
  • Neurological disorders
  • Neurological treatments
  • Neuropsychology
  • Neurorehabilitation
  • Parkinson's
  • Parkinsonism
  • Sleep disorders
  • Stroke
  • Tension headache
  • Tremor
  • Vascular dementia
  • Vertigo

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  • Spire Gatwick Park Hospital
    Povey Cross Road RH6 0BB - Horley
    (+44) 02070313402
  • Spire Montefiore Hospital
    2 Montefiore Road BN3 1RD - Hove
    (+44) 02070313402
  • Virtual consultation
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Valoraciones de pacientes


Es un servicio de mensajería privada y videoconferencia que te permite realizar una consulta médica conmigo en cualquier momento y lugar./A private messaging and video conference service that allows you to contact the best doctors at any time and place./È un servizio di messaggistica privata e videoconferenza che ti permette di contattare i migliori medici in ogni momento e in qualsiasi luogo.




The cognitive impact of COVID-19
Coronavirus can cause symptoms that can last for months after being initially infected. We decided to speak with Dr Dennis Chan, a highly regarded neurologist who has researched into these long term effects of COVID-19. In this article, we discuss the virus' impact on cognitive function, why it can affect it and in what ways. We also look into ways that cognitive problems due to coronavirus can be treated.
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Neurological conditions can be seriously debilitating and, in some cases, life-threatening. Therefore, it's important to spot the signs early. Dr Dennis Chan shares his expert knowledge of the symptoms, which indicate more serious neurological issues.
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