This report describes the Teen-Treatment Services Review (T-TSR) and its initial testing. This brief interview modified from the adult Treatment Services Review (McLellan et al., 1992) furnishes a quantitative profile of the types and number of in-program and out-program treatment services provided during a treatment episode for substance use disorders (SUD). One-day test-retest interval data were collected from adolescent patients in a partial hospitalization program (PHP, N = 20) and from an outpatient clinic (OPA, N = 24). The clinical utility is supported. The test-retest reliabilities of the T-TSR were variable. The T-TSR may be useful at the programmatic level in describing and comparing programs by the type and number of services delivered to adolescents with SUD. Additionally, it may offer a tool for quality assessment by evaluating actual patient treatment-services matching. Further studies of the psychometric properties of this instrument in various clinical settings for adolescents are recommended.