It's being reduced though. A lot of private practices are being bought out by big (in many cases for-profit) hospital or doctor's groups, and the doctors are p

It's being reduced though. A lot of private practices are being bought out by big (in many cases for-profit) hospital or doctor's groups, and the doctors are put on salaries instead of owning their practices. In many areas there is now only one big group. Naturally this can be highly profitable.