Hypochondriasis, which is classified as a type of somatoform disorder, is one of the most difficult psychiatric disorders to treat. It is prevalent in primary care settings, and is a major source of suffering for patients and frustration for physicians. People with hypochondriasis tend to become preoccupied with the fear of having a serious disease, despite appropriate medical evaluations and reassurance that indicate otherwise. The disorder usually occurs in episodes lasting from months to years, separated by equally long periods of quiescence. Existing strategies for treating hypochondriasis include psychotherapy, medication treatment, and alternative treatments, such as exercise and electroconvulsive therapy. An effective treatment program should target the needs of both patients and physicians, as well as the structure of the delivery system. Components of such a program have been developed, but have not yet been integrated and tested in a clinical setting. This study will evaluate the effectiveness of an integrated three-part treatment program in improving hypochondriasis treatment and quality of care outcome in primary care settings.