Here are 10 trends on pain management case revenue from 2007-2010, based on data from VMG Health's Multi-Specialty ASC Intellimarker reports from 2008-2011. (Note: Data in the reports is from the previous calendar year.)

Here are eight statistics on ambulatory surgery center pain management net revenue based on total revenue from VMG Health's Multi-Specialty ASC Intellimarker 2011. The trend across the board is that both gross charges and net revenue per case increased as the total net revenue of the surgery center increased. Centers with more than $6,999,999 in net revenue made up more than 60 percent of the centers reporting.

Here are the median gross charges and net revenue per orthopedics case by a surgery center's number of operating rooms, according to VMG Health's 2009 Intellimarker.

Here are the median gross charges and net revenue per pain management case, broken down by a surgery center's number of operating rooms, according to VMG Health's 2009 Intellimarker.