Sky News understands the Queen has been informed of the death of one of the Royal Family’s physicians.
Police are appealing for information over reports of a collision between a lorry and a cyclist in central London on Wednesday morning.
Dr Gill Gaskin, medical director at University College London Hospitals, said: “We are all deeply shocked and saddened to learn that Dr Peter Fisher tragically died in a road traffic accident yesterday.
“Peter was director of research at UCLH’s Royal London Hospital for Integrated Medicine, and physician to Her Majesty The Queen.
“Peter was a highly regarded colleague and friend of many at the RLHIM, where he worked for more than 35 years.”
Dr Fisher will be “greatly missed by his colleagues and patients alike”, she added.
The Met Police are appealing for information after a fatal collision on High Holborn on Wednesday morning.
Officers were called around 9.30am to reports of a lorry hitting a 67-year-old cyclist, who was pronounced dead at the scene.
No arrests have been made, with Scotland Yard keen to speak to any witnesses.
Dr Fisher was a specialist in homeopathy and other complementary medicines, integrated with conventional treatments for conditions such as osteoarthritis and rheumatoid arthritis.
A biography on the UCLH website also described him as specialising in skin conditions, including eczema and psoriasis, as well as a wide range of general medical problems.
He chaired the World Health Organisation’s working group on homeopathy and was a member of the global body’s expert advisory panel.
High Holborn is less than a mile from UCLH’s Royal London Hospital for Integrated Medicine.