The Health Information and Quality Authority has found major non-compliance in three services for people with disabilities run by Nua Healthcare Services.
The issues related to positive behaviour support, safeguarding and the management of restraint.
An inspection at Broadleaf Manor took place in May in response to the receipt of non-solicited information.
Inspectors found the concerns were substantiated and that the provider had continued to fail to ensure that residents and staff were safe.
There was a high frequency of incidents which included physical and verbal altercations.
The inspectors were informed that two staff had been assaulted on the first day of the inspection. Inspectors reviewed the accident and incident records and noted that there had been a high level of staff injuries recorded.
Poor implementation of the admissions process continued to impact negatively on the safety and well being of all residents.
Inspectors found that nine residents who had complex support needs were living together, however there was little evidence to indicate that they were compatible.
At Tignish House, inspectors found that the systems in place did not facilitate a safe and effective service.
Fundamentally due to environmental constraints, high levels of restrictive practice and an absence of governance oversight, inspectors found that residents' rights were infringed.
At Chapel View, actions arising from earlier audits had not been addressed.
Inspectors determined that residents were not adequately protected from violence of any form due to the incompatibility of residents who required high supports as a result of high risk complex needs.
In total 19 inspection reports were published today.
Thirteen centres were found to have a good level of care including centres operated by Dundas Limited, G.A.L.R.O. Limited, KARE, Muriósa Foundation, Peacehaven Trust, Praxis Care, Resilience Healthcare Limited, Saint Patrick's Centre (Kilkenny), St Hilda's Services and Western Care Services.