The US spends far more per capita on healthcare than any other developed country -- $7,538 per person, compared to $3,129 in the UK, $4,079 in Canada, and $5,003 in Norway (the second-biggest spender), according to 2008 totals compiled by the Kaiser Family Foundation. One contributor to our high healthcare costs is high administrative costs, which is the natural consequence of having hundreds of different insurance plans with different policies, networks, and rates. A new study in the journal Health Affairs focuses on one aspect of administrative costs: the time physician practices spend…