Medicare's pay-for-performance (P4P) initiatives are fast becoming a fact of life for physicians. Already, 34 percent of internists, 29 percent of family physicians, and 44 percent of physicians in large practice groups are being impacted by P4P according industry studies. In November's "Healthcare Tech and the World," Perot Systems (NYSE: PER) looks at P4P, and whether or not it is a major driver for physicians to widely adopt technology.