Holly Cairns has marked her return to the Dáil after maternity leave by thanking her colleagues in the Social Democrats and her voters.
She raised the issue of disability, and criticised the Government progess on the matter.
Deputy Cairns said "16,000 children are overdue an Assessment of Need, essential therapies are non-existent and hundreds of children left in agony waiting for spinal surgery."
"The only things disabled people are guaranteed by your Government are broken promises and a waiting list."
"Children like Harvey Morrison Sherrat have suffered years of trauma and pain," she added.
"His mother said All he wanted was his iPad, Hunky Dorys, the odd lollipop and timely access to healthcare."
Deputy Cairns said parents were faced with "an uncaring system - knowing every day means their children are further at risk of never reacing their full potential."
"Where disabled people become adults, any meagre supports vanish"
The Taoiseach said it was important to create the other side of the narrative as well - pointing to an "unrelenting investment and exponential growth in services."
He said the state investment in special education had risen 43% since 2020.
Responding, Deputy Cairns said even when it comes to recognising the cost of disability "your government manages to spectacularly miss the mark."
She cited the government's one-off payment to disabled people and said it was insulting.
She said nearly 76% of disabled people were at risk of poverty.
"Will you introduce a cost of disability payment in the budget?"
Micheal Martin said it was wrong to suggest that the Government didn't consult with disabled people in formulating their strategy, saying Ms Cairns comments were cynical.
"There will be measures in the budget to help families with disabilities in terms of income support," he said.