This paper describes the development and initial testing of the Treatment Services Review (TSR). The TSR is a 5-minute, technician-administered interview that provides a quantitative profile of the number and types of treatment services received by patients during alcohol and drug abuse rehabilitation. Test-retest studies indicated satisfactory reliability administered either in person or over the phone. Tests of concurrent validity showed the ability to discriminate different levels of treatment services and good correspondence with independent measures of treatment provided. While additional studies are still needed with this instrument, the data collected thus far suggest that the TSR may serve two types of needs. First, at the programmatic level, the TSR may prove useful in describing and comparing programs in terms of the nature and number of services actually delivered to patients. At the individual patient level, the TSR may offer a means of evaluating the "match" between a patient's needs and the services actually provided.