Highland Pediatric and Primary Care Rural Health Clinic 146 Highland Parkway Picayune, MS 39466. Get Driving Directions. Hours of Operation. Sunday Closed Monday 8:00 AM - 5:00 PM Tuesday 8:00 AM - 5:00 PM Wednesday 8:00 AM - 5:00 PM Thursday 8:00 AM - 5:00 PM Friday 8:00 AM - 5:00 PM ....