Raumanga Medical Centre GP Conlin Locke said they had seen a jump in the number of children coming in since the new policy came in.
It was good the initiative started in October in Northland as many practices would struggle coping with the increase in demand over flu season, he said.
While families used to bring in a lot of kids at once to save money, now they were coming as soon as they needed to, Dr Locke said.
Bush Road Medical Centre practice manager Siobhan Matich said she thought the move showed "great foresight".
"More people are coming because of the reduction in financial barriers," she said. "They are engaged early and there's no worry about do I have to pay."
Whangarei mum Da'Shaun Walding said her daughter had chronic eczema and asthma so doctors visits were a regular occurrence. While the family usually visited the free GP at her daughter's school she was pleased to learn three weeks ago all GP visits were free.
"It takes off so much stress for the families," Ms Walding said. Mr Farrelly echoed earlier concerns that the rate of uptake by low-income Maori families was not as high as health professionals would like.