We find that distance traveled falls for primary care and rises for tertiary care, although there is no evidence of a decrease in the quality of hospitals used by patients. The basic results hold even for the sickest patients, suggesting that limited network plans are saving money by directing care towards primary care and away from downstream spending. We find such savings only for those whose primary care physicians are included in limited network plans, however, suggesting that networks that are particularly restrictive on primary care access may fare less well than those that impose only stronger downstream restrictions.
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