Health visitors, speech and language therapists,SENCO coordinators, educational psychologist, clinical psychologists, early years teaching advisor, social services, sure start
It does not matter if you are a child minder or work within a setting you are following EYFS you could try your local council website, for information or just put in appropriate people who work with children in search engine of the web.
Health visitors can refer you to the doctors or onto speech and language, paediatrician are also refereed by health visitors
Hope this helps
