White Wilson Medical Center. Crestview, Fort Walton Beach, Niceville. Yes: Crestview: 850-634-6193. Ft. Walton Beach: 850-863-8219. Niceville: 850-897-4400. Will file with insurance and accepts self-pay: Main Street Medical Center. 369 N Main Street Crestview. Yes: Schedule online for Mainsteet Medical Center: Appointments required..