The current study involved 1072 participants from Indonesia and the Netherlands. Participants were healthcare professionals and master students with different educational backgrounds (medical doctors, psychologists, nurses, and social workers; medicine, psychology, educational science respectively). They were recruited from various addiction-training programs in the Netherlands and Indonesia. We adapted the Illness Perception Questionnaire (the IPQ) to the addiction version (the IPQ-A) and evaluate the psychometric properties of the IPQ-A: factor structure, internal consistency, and discriminant validity, when applied to evaluate healthcare professionals’ perceptions of addiction. The data set includes the statistic data (the SPSS files), the codebook that describes the study and the questionnaires: the IPQ-A, IPQ and IPQ-R.