Objective: Managed care organizations prefer putatively less expensive split treatment, i.e., a psychopharmacologist plus a non-M.D. psychotherapist. In this study the cost of integrated care by a psychiatrist was compared with split care.
Method: Using 1998 fee schedules of seven large managed care organizations (with 54.3% market share and 67.8 million lives) plus Medicare (37 million people), the author modeled clinical scenarios of psychotherapy alone, medication alone, and combined treatment provided by a psychiatrist or split with a psychologist or social worker.
Results: Brief psychotherapy by a social worker was the least expensive treatment. When treatment required both psychotherapy and medication, combined treatment by a psychiatrist cost about the same or less than split treatment with a social worker psychotherapist; it was usually less expensive than split treatment with a psychologist psychotherapist.
Conclusions: The integrated biopsychosocial model practiced by psychiatry is both theoretically and economically the preferred model when combined treatment is needed.