Yes there was - from the doctors, the Conservative opposition, the press and even some in Attlee's own ministry.

The British Medical Association, the doctors union, opposed the NHS on the basis that it would affect their private practices and they were not pleased at the thought of becoming state employees and consultants wanted the right to retain their private patients. They were notoriously opposed to the proposed NHS. The BMA held a survey and claimed just 4,374 doctors from a sample of 45,148 were in favour of it. The issues with doctors were rectified when Bevan offered investment in equipment and buildings and allowed doctors to continue to treat privately.

The right-wing newspapers claimed that the NHS was part of some alterior plot to turn ''Great Britain into a National Socialist economy''. In Parliament, Winston Churchill piled on with some particularly colourful language against Aneurin Bevan:

He will be as great a curse to his country in time of peace as he was a squalid nuisance in time of war

In the lobbies, The Conservatives voted against the legislation a stunning 21 times before it was enacted, but their amendment neither passed nor did they win on the third passing of the bill. (261-113 in July 1946)