Our Meridian pediatrics clinic is located on the west side of N. Locust Grove Rd., just north of Ustick. ... Meridian Pediatrics Clinic. 3653 N. Locust Grove Rd. Meridian, ID 83646. Contact Info. PH: (208) 302-7300 FX: (208) 302-7355 Meridian Pediatrics Hours. ... Patient Forms; Patient Portal; Our Services. Appointments; Child Visits ....