The London Ambulance Service was called at 11.31am on Wednesday (November 26) to reports of a crash on Beulah Hill.
An ambulance crew and a paramedic in a fast response car were sent to the scene.
A patient was treated at the scene before being taken to hospital.
A spokesperson for the London Ambulance Service said: “We were called at 11.31am yesterday (26 November) to reports of a road traffic collision in Beulah Hill, Upper Norwood.
“We sent an ambulance crew and a paramedic in a fast response car to the scene.
“We treated a patient at the scene and took him to a major trauma centre.”
