In an article in The Age earlier this month, Mr Davis said the ambulance union had a track record of spreading misinformation in a bid to support its 'greedy' demand for taxpayers to fund union activities.

"Many of the claims by the hard left ambulance union, made in the middle of an enterprise bargaining agreement campaign, are often proven to be entirely incorrect," he said.

"The hard-line, left-wing ambulance union and its stooges are running a political campaign in tandem with Labor, to whom they have donated almost $1 million in recent years."

Ambulance Victoria Edenhope team manager Malcolm Hunting said he took the utmost offence to Mr Davis' comments.

"Although I am a union member and support what our membership is doing, I am not and never have been a 'stooge' of the union," he said.

"What I am and always have been is a career paramedic, with just shy of 37 years of dedicated work ethic and commitment to the Victorian community."

Mr Hunting said his family often missed out because of his shift work and he was regularly called back to work for town coverage when the duty paramedic was out of town on a case.

"Yes I am paid when this occurs but I don't have to do it - I would much rather have been able to participate in family activities," he said.

"I have even changed holiday arrangements to ensure coverage in my small community.

"We the paramedics who serve the Victorian community only undertake the industrial actions because, for about two years, we have been trying to negotiate with Ambulance Victoria and the State Government for fair pay for the career we love."

Mr Hunting said paramedics were not permitted to speak publicly about the conditions of their jobs until Fair Work Australia gave them the right to do so under the protected industrial action.

"We have limited ability to show the greater community what we are trying to negotiate for," he said.

Mr Hunting said he was also disappointed Mr Davis authorised newspaper advertisements that were supposedly addressed to paramedics.

"It was more like an attempt to undermine the ever-increasing public support paramedics have," he said.

"There was no need for this to appear in the newspapers because the same letter was mailed to all paramedics personally."

He said the letter was also filled with lies and inconsistencies.

"When you live in a glass house I respectfully suggest you don't throw stones," he said.