The charity hopes to raise money to recruit more doctors
A charity is to be launched which will see doctors attending roadside accidents and other serious incidents.
The North Wales Emergency Doctor Service aims to provide expert help to paramedics before patients are transferred to hospital.
Four doctors - in Wrexham, Conwy, Gwynedd and Denbighshire - are signed up, but it is hoped more funds can be raised to increase membership.
They will volunteer in their free time, or during hospital "downtime".
Working in conjunction with the Welsh Ambulance Service, the doctors will be alerted when major accidents - like crashes or mountain falls - occur.
It is hoped they will then be able to attend the scene and provide crucial support to paramedics.
The charity's chairman, Dr Suman Mitra, consultant anaesthetist at Ysybty Gwynedd, Bangor, said: "The idea started in north Wales because of the geography and how spread out things are.
"The nearest big hospital, if someone has a serious head trauma, is in Liverpool.
"We sometimes find that patients that have gone through an accident on the road or even fallen off a mountain, could have had a better outcome if things were done slightly different.
"Often, it's better for the paramedic if expert help is on the scene."
Each doctor will be supplied with £15,000 worth of equipment in their car.
When the ambulance service is called to a major incident, the doctors will also be notified.
They will work voluntarily during their own free time, or in "downtime" during their normal working day.
Joining Dr Mitra will be GP Mike Bloom, who lives in Conwy but works in Llanfair PG, Anglesey, Dr Ben Warrick based at Ysbysty Glan Clwyd in Bodelwyddan and A&E consultant Dr Aruni Sen in Wrexham.
Dr Mitra added: "My overall ambition is that we get more doctors involved.
"The problem is that because we don't have money we can not kit them out."
It is hoped the service will be running by the end of May, and the charity will hold an official launch in July.
Dr Mitra said similar services existed across the UK.