Imagine Behavioral & Developmental Services Share: Medical and DentalEducation Imagine Behavioral & Developmental Services Visit Website 1630 23rd Avenue Suite 501 Lewiston, ID 83501 (208) 798-8771 (208) 798-8235 (fax) Hours: Our office is open 8:00 am-5:00 pm Monday - Friday. Also may schedule therapy for evenings/weekends. About About We provide developmental therapy to children and adults who have developmental disabilities. This therapy is designed to teach life skills and increase independence.