There is growing interest in understanding the usefulness of mentorship programs for children's rehabilitation service providers. This evaluation study examined the effects of an occupational therapy mentorship program on the skills and behaviors of 8 new and 17 experienced occupational therapists practicing at a regional children's rehabilitation center. Self- and peer-report measures of family-centered behavior, critical thinking ability, listening/interactive communication skill, and clinical behavior were collected before and after an 11-month facilitated, collaborative group mentorship intervention. Significant pre–post changes associated with intervention were found on 9 of 12 outcome measures, including information provision, respectful treatment, self-confidence, and listening and clinical skill. Changes were not found on the more trait-like variables of open-mindedness, interpersonal sensitivity, and interpersonal skill. Experienced therapists had higher scores than new therapists on most variables, including family-centered behavior, listening skill, and clinical skill. Implications regarding the utility of mentorship programs in children's rehabilitation centers are discussed.