Yeah, they've done this study before (Just before the last election, suspiciously enough) and the rebuttal I'll link to slaps it down nicely:
Are we really- 19th-out-of-19
Choosing Nonmedical Benchmarks
Cherry-Picking the Benchmarks
Using Questionable Benchmarks
Equating Low Spending with Efficiency
Using Questionable Measurements
Confusing "Access" with "Third-Party Insurance"
Ignoring Self-Insurance
Ignoring Assets
Applying the Commonwealth Criteria of "Underinsured" to the Medicare Population
Ignoring Rationing by Waiting
Misusing Statistics.
Tres bon!