The Blackadder star is believed to have suffered a minor shoulder injury when the car he was driving hit a tree and lamppost and caught fire.
It is understood the crash happened on the A605 at Haddon near Peterborough at 19:30 BST on Thursday.
Media reports said he walked from the McLaren F1 super car and waited with a motorist until an ambulance arrived.
Firefighters arrived on the scene to put out the fire.
A spokeswoman for Cambridgeshire Fire and Rescue Service said: “Crews brought the fire under control by 8.13pm. They made the vehicle safe and used one hose reel to put out the fire.
“There was one casualty but he was not trapped.”
East of England Ambulance Service said a man was taken to Peterborough City Hospital with “a minor shoulder injury” following the crash.
Atkinson achieved fame through BBC shows Not The Nine O’Clock News and Blackadder, before gaining international recognition in Mr Bean, in which his hapless character drives an old Mini.