Sixty-five per cent of doctors polled by OnMedica say the scheduling of outpatient appointments is worse now through Choose and Book than it was before.
The survey of 400 medics comes ahead of the LMC conference "Standing up for General Practice" on 12-13 June when a call to suspend Choose and Book nationally will be debated.
The National Audit Office investigation into the National Programme for IT in the NHS last month reported that bookings using Choose and Book have been lower than expected, with 6.7 million by January 2008 against an original forecast of 39 million.
"Doctors are facing a crisis of confidence over every aspect of IT in the NHS," said Kamran Abbasi, chief executive officer of OnMedica.
"Last week’s news that Fujitsu’s multi-million pound contract with the NHS has been terminated will only add to concerns."
Over 800 motions have been submitted to the LMC conference. Debate topics will include government health policy and the NHS, out-of-hours care, opening extended hours, health record confidentiality as well as Choose and Book.