The Mangawhai ambulance team had arrived, along with other emergency personnel and stabilised the patient.
The Northland Electricity rescue helicopter was called, and it arrived with two intensive-care paramedics on board.
They further stabilised the man and after consultation with emergency teams at Whangarei Hospital he was flown to Auckland Hospital's cardiac care unit for treatment.
St John acting operations manager Wally Mitchell said it was a great community response that saved a life, and an example of the benefits of defibrillators being easily accessible within communities.
With the St John Annual Appeal starting next week, Northland people are being urged to show their support.