Abstract Background Digital health (patient portals, remote monitoring devices, video visits) is a routine part of health care, though the digital divide may affect access. Objectives To test and validate an electronic health record (EHR) screening tool to identify patients at risk of the digital divide. Materials and Methods We conducted a retrospective EHR data extraction and cross-sectional survey of participants within 1 health care system. We identified 4 potential digital divide markers from the EHR: (1) mob…