Medical board rehab programs -- should they be confidential?

From the msnbc.com article:

Nearly all states have confidential rehab programs that let doctors continue practicing as long as they stick with the treatment regimen. Nationwide, as many as 8,000 doctors may be in such programs, by one estimate.

These arrangements largely escaped public scrutiny until last summer, when California's medical board outraged physicians across the country by abolishing its 27-year-old program. A review concluded that the system failed to protect patients or help addicted doctors get better.

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