ABSTRACT The purpose of this article is to examine the market paradigm's impact on private practicing social workers, psychologists and psychiatrists who are reimbursed for services by managed behavioral health care organizations (MBHCOs). Five hundred eighty-two private practitioners from across the nation responded to a mailed survey in which they were asked a series of questions concerning changes in their business practices subsequent to joining MBHCO provider panels. Results indicate that despite the concerns about MBHC, these practitioners have sustained their practices. The market paradigm's use in explaining MBHC's impact on the private practitioners was found to have limited utility.