The HSE spent nearly 1.3 million euro on debt-collection costs in 2019 and 2020.
According to freedom of information documents, the money was paid to six companies - with one agency getting over half a million.
The HSE was seeking to collect unpaid costs, such as 100 euro for a patient attending an emergency department.
The Irish Patients Association, is questioning the debt-collection spend.
Teen Arrested After Dangerous Driving On N11 Bray
Amhrán na Laoch Provides Potential Gateway For Wicklow Songwriters
Wicklow Ready For National Heritage Week With Treasure Trove Of Events
Love Pours Out For Little Acorn Café, Baltinglass Amid Closure
Wicklow Player Scoops €500,000 EuroMillions Prize