Prestonsburg Primary Care PLLC. Family Medicine, Physician Assistant (PA) • 2 Providers. 535 N Lake Dr, Prestonsburg KY, 41653. Make an Appointment. (606) 886-8466. Telehealth services available. Prestonsburg Primary Care PLLC is a medical group practice located in Prestonsburg, KY that specializes in Family Medicine and Physician Assistant (PA)..