About Rockbridge Pediatrics, PLLC. Rockbridge Pediatrics, PLLC is a pediatrician practice located in Lexington, VA. Our Facilities. Rockbridge Pediatrics, PLLC has been registered with the National Provider Identifier database since May 18, 2007 and its NPI number is 1235347857. Book an Appointment. To schedule an appointment, please call (540 ....