In a letter to health minister Lord Ara Darzi, Dr Meldrum wrote that doctors 'wish to see significant improvements made in the NHS'.
'But we are concerned that, in places, the process is flawed and will produce rushed, incomplete and potentially unsound conclusions,' he added.
He also criticised the 'over ambitious' speed of the review. 'More worrying is that, on occasion, the content of what is subsequently produced does not reflect discussions in the group,' he added.
'The involvement of our members is extremely patchy,' he said. 'And in some areas one gets the impression that the decision has already been made.'
He cited the plan to create a new polyclinic in each PCT. 'When we talk to Lord Darzi and health secretary Alan Johnson, they assure us they wouldn't want them to happen unless they're needed on the ground.
'But the message PCT chief executives are getting is that this is a must do, not an option.'
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