I work as a data analyst for the biggest health insurance company in the US and I can tell you that you're asking for a LOT of very detailed information. Way outside the scope of Ask Community. And you'll need to qualify exactly what you mean by "integrated health delivery system", there are dozens of definitions. You can start by visiting the American Hospital Association at http://www.aha.org/research/rc/stat-studies/fast-facts.shtml then check out the American Hospital Directory at www.ahd.com/state_statistics.html
According to the National Directory of Health Systems, Hospitals and Their Affiliates, there are over 780 integrated healthcare delivery systems. There are over 12000 system affiliations. You can find more information from the following site http://www.theagapecenter.com/Hospitals/index.htm.