The percentage of claimants who complain about ATOS (now known as IAS) has risen over the last 12 months and almost doubled in the course of the last four years.
In answer to a parliamentary question last week, Justin Tomlinson revealed that in 2019 there were 6,140 complaints against ATOS, who carry out PIP health assessments on behalf of the DWP.
This represents 0.91% of the total number of assessments carried out by ATOS last year.
The figures for previous years were:
Tomlinson also revealed that there were 3,640 complaints last year against Maximus (also known as CHDA), who carry out work capability assessments. This represents 0.45% of the total number of assessments.
No figures were supplied for Capita.