Prairie Pediatrics & Adolescent Clinic Sioux City IA 4.5 out of 52 stars with 7 reviews on Facebook. Prairie Pediatrics & Adolescent Clinic. 1125 Pierce St # 100. Sioux City , IA , 51105. (712) 255-8901. adhd test, pediatrician, vaccinations, immunization, immunization, pediatric doctor, childrens doctor, paediatric, baby doctor, kids doctor ....