Nick Fletcher also claimed that his Doncaster constituency was "full".
Health secretary Sajid Javid blamed the delay on the Covid backlog.
The national medical director for NHS England has urged people who need emergency treatment to still seek it.
“We often hear from young people who’ve gone to A&E because they don’t know where else to turn.”
NHS chiefs could be about to ditch four-hour waiting targets.
More patients than ever had to wait four hours or more to be seen.