An information analyst at the out of hours GP service serving Croydon, Sutton and Merton raised £920 from a charity bike ride.
Christian Kemble was one of the 1,500 cyclists who took part in the 54 mile Doitforcharity bike ride on September 16.
Mr Kemble was inspired to raise money for The Royal Marsden Cancer Charity, after seeing the excellent care a colleague’s partner received at the hospital.
He completed the charity ride from London to Brighton, in four hours and fifteen minutes.
The route started at Streatham Common, taking cyclists through Mitcham, Banstead and Haywards Heath.
The Patient Care 24 employee said: "Although I was tired afterwards and could barely speak the next day, my body didn’t hurt and I know that’s because I trained hard to prepare for the event.
"Many of our GPs sponsored me which was great, I think by the end of this I will have raised over £1,000. Raising money for charity is really fun, I am definitely thinking of doing it again."
After he crossed the finish line in Brighton he was welcomed by his colleagues, Dr Henk Parmentier, Chetal Shah, and Lisa Westmoreland who had travelled to show their support.
Dr Parmentier said: "We are so happy that Christian has done this for such a great cause and helped raise awareness."
Mr Kemble is now considering completing a charity parachute jump next June.