The 99-year-old Second World War veteran’s initial target was to raise £1,000 for NHS Charities Together – a target that he has smashed by 4,353%.
The Second World War veteran has been doing laps of his garden in Bedfordshire.
He is expected to complete the challenge on Thursday.
His fundraising efforts have been praised by a number of famous faces.
Tom Moore, 99, says the NHS have been "marvellous" in helping him recover from both a hip replacement, and skin cancer on his head,
Heroic Albert Chambers has described himself as a "very lucky man" after successfully battling the virus which to date has claimed the lives of nearly 8,000 Britons
Jack Pantall crafted the huge tribute to the health service in one of his fields near Staunton-on-Wye, Herefordshire
James Kerr, 98, married his wife, Elizabeth, 92, on March 25 1950
Seb Whitehouse and housemate Gemma Powell paid tribute to the extraordinary doctors in a very creative way