This article highlights the mutual dependence of disciplines in capitated care systems, with a focus on a sample program at Kaiser Permanente. Challenges for psychology are discussed as they relate to intradiscipline issues, relationships with other psychosocial care disciplines, and broad health care systems issues. The author suggests that psychology's future in capitated care will rest on skills in research, program development, and specialty practice areas (e.g., clinical health psychology, clinical neuropsychology) and encourages advocacy for the elimination of mind-body dualism in health care policy.There is now little doubt in professional psychology that there have been, and will be, changes in the manner in which health care is delivered in this country. According to the Group Health Association of America National Directory of Health Maintenance Organizations (HMOs) database, the number of people cared for by HMOs has increased fourfold since 1982, reaching 45.2 million members nationwide at year-end 1993. As of March 1994, 556 HMOs were in operation nationwide, nearly double the number available a decade ago. Of these, 40% have been in operation for 10 years or more and account for almost 75% of all HMO members. Consolidation in the industry continues, as mergers or acquisitions involved 20 plans in 1993. In addition, although in 1991 the predominant plan model was the independent practice association (IPA), nearly a quarter of all plans were group or staff model HMOs, and these accounted for almost 40% of all HMO enrollees.' Physician hospital organizations (PHOs) will most likely dominate the piecemeal delivery systems common today, as only such integrated systems are capable of providing the comprehensive, seamless care consumers are demanding. Clearly a sizable proportion of our population will obtain their services from capitated group or staff model health care systems.