There were over 5,500 cancellations at Regional Hospital Mullingar according to CHI.
Claims that 800 chemotherapy appointments for children and young people were cancelled last year are being disputed.
The Sinn Fein leader Mary-Lou McDonald told the Dail yesterday a 250,000 hospital appointments were cancelled in 2023, including the chemo sessions for children.
That figure also includes over 5,500 cancellations at Regional Hospital Mullingar last year.
However Children's Health Ireland says the majority of those cancellations were made for 'patient specific reasons' based on 'clinical decisions'.
These include a patient being too unwell or no longer needing the treatment.
Sinn Fein's Health Spokesperson David Cullinane says concerned CHI is now challenging the data it provided to the HSE.
Midlands Hospital Experiencing High Admission Numbers
Founding President Of TUS To Step Down Next Year
Westmeath Father Loses Job After Using HSE Funds For Home Upgrades
Higher Education Minister Visits Offaly
Midlands Woman Pays Tribute To Sister After Manslaughter Sentence
FTD Brothers Continue 32 County Marathon Challenge Through The Midlands
Fresh Restoration Works Begin At Westmeath Castle
Nearly 1,000 Homes And Businesses Hit Affected By Power Outage In Midlands Town
TUI Says State Should Pay For School Devices
Musicians Gather In Offaly Celebrating Fr Liam Lawtons Music
Minister For Health Wants Closer Working Relationship For Midlands Hospitals
US-Iran Peace Deal Nears As Talks Continue
Westmeath Activist Calls Out Government After Being Detained By Israel
Laois TD Voices Concern Over Appeal For Proposed Windfarm
HSE Still Formally Settling Offaly Hospice Dispute
Weeklong Heatwave Hits Midlands
Uisce Eireann Agree To Examine Pipeline Solution For Westmeath Town
Offaly's Comhaltas President Meets King Charles In Belfast
Laois TD Demands Deer Be Tested For TB
Health Minister Opens Newly Extended ED Department In Laois