More than 900 people are being recalled for hearing assessments in the southeast.
It is thought the majority of cases are related to children and form part of a quality assurance process in audiology services in the region.
The recall follows a report by RTÉ Investigates last week that almost 50 families in counties Mayo and Roscommon have received an apology for serious failings in paediatric audiology services provided to their children, which left some with lifelong impairments.
In letters sent to a number of families in the southeast this week, the HSE offered parents the opportunity to have their children's hearing reassessed.
It is understood an information line has also been set up to deal with queries from concerned parents.
The letters include an apology for any anxiety caused, adding the recall "is a precautionary measure to ensure that care is of the highest possible standard".
"As part of regular audits of standards, the HSE noted potential concerns about aspects of the service previously provided to some clients. Accordingly, a review of all audiology files for children has been taken," a HSE spokesperson said.
Commenting on the recall, Dr Gary Norman, National Lead for Audiology with the HSE, added: "As a precaution, a number of clients are being recalled for a check-up appointment.
"I want to reassure them and their families that this process is purely precautionary and we do not anticipate negative outcomes in the vast majority of cases.
"These check-up appointments are being prioritised to ensure that all clients are seen as soon as possible."
