In the San Bernardino City USD, you can take your preschool child to the nearest public elementary school for screening and possible IEP. This way, the speech classes can be ongoing when your child goes to the school. If your child is not going to public school, she can still be seen in the public school sector. See if this is available in Corona before driving yourself crazy finding one. Our speech pathologists do wonderful work for our students. Take care and good luck!