An interventionist refers to someone who likes to get involved or interfere in a situation, often with the intention of making changes or giving guidance. Full definition
The 8 percent who did not almost certainly have a less interventionist God in mind. (religion-online.org)
Video # 3: Supporting Dual Language Learning: Experiences of Early Interventionists by Deborah Chen & Michele Haney (products.brookespublishing.com)
To raise achievement levels among poor students on a grander scale, the report recommends allowing principals at opportunity schools to train other school leaders and increasing the number of social workers and reading interventionists in schools. (baltimoresun.com)