A flagship SNP waiting time law was broken 2112 times in the first three months of 2018 in NHS Lothian.
In 2012 the SNP introduced the Treatment Time Guarantee, which gave patients a legal right to treatment within 12 weeks for conditions such as knee and eye operations.
The law has been broken 134,804 times across Scotland since it was introduced.
The new figures also show that since its introduction the law has been broken 27,400 times in NHS Lothian.
Labour MSP Neil Findlay branded the performance unacceptable.
The figures follow on from Scottish Labour leader Richard Leonard revealing at First Minister’s Questions recently that a growing number of patients wait more than 12 weeks for treatment, going from 1 in 20 in 2015 to 1 in 5 in 2017.
Labour MSP Neil Findlay said:
“In 2012 the SNP made a promise to the people of Scotland that they would have a legal right to treatment within 12 weeks. That law was broken over 27,000 times in Lothian.
“Patients locally deserve transparency when it comes to their treatment.
“Long and unknown waits can have a negative impact on a person’s work, family life, mental and physical wellbeing.
“That’s why Labour forced the SNP government into a commitment that patients get an accurate expected waiting time for their treatment.
“We want to see this in place as soon as possible. This is not another problem the SNP can park on a waiting list.”