The aircraft made an emergency landing outside the Masons Arms in Long Marston, near to Stratford-upon-Avon, at around 12.20pm.
The helicopter is reported to have caught fire after making the emergency landing. Two people travelling in the helicopter managed to get out safely.
Two patients were assessed by paramedics but were uninjured and discharged at the scene.
A spokesman from West Midlands Ambulance Service said: "On arrival, crews discovered the helicopter well ablaze.
"There were two patients at the scene, who had managed to get out of the helicopter safely.
“Thankfully, they were uninjured in the incident and able to be discharged at the scene.”
One ambulance, a senior paramedic officer and four paramedic officers attended the scene in Long Marston.