Objective: To evaluate health care experiences of adults with ADHD and to identify predictors for patient satisfaction. Method: Multisite, questionnaire-based survey in a cohort of adult patients diagnosed and treated for ADHD in the Bergen area of Western Norway between 2005 and 2011. Results: Among the 171 included patients, only 61 (35.7%) reported being satisfied to a large or very large extent with the received health care. The strongest predictor for overall satisfaction, independent of duration, medication, and reported outcome of treatment, was whether they were satisfied with the information they had received from clinicians regarding ADHD and treatment options. Patients who reported that they had been offered other treatments in addition to pharmacotherapy were generally more satisfied. Conclusion: Our results emphasize the importance of consistent information routines as part of ADHD management. More teaching and training about ADHD for clinicians working in adult psychiatric health services may be needed.