In response to a parliamentary question from shadow conservative health secretary Andrew Lansley, Mr Bradshaw said that the secretary of state had only made one official visit to a GP practice since last June, when he visited Churchill Medical Centre in Kingston, Surrey.
He neglected to mention Mr Johnson's visit to the polyclinic-style Riverside Medical Centre in Vauxhall, London, alongside prime minister Gordon Brown last August.
Mr Bradshaw said he himself has visited seven practices, in London and the South West.
However, he added that he had visited St Bridge Practice in Gloucestershire twice.
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