Study: Apps integrating with EHRs grew 20% during 2020 October 6, 2021 Auto Bot ALLSCRIPTS, apps, athenahealth, Cerner, EHRs, Epic, FHIR, Health IT, News 0 Though the total number of unique apps that integrate with major EHRs, like Epic and Cerner, increased from 600 at the end of 2019 to 734 in December 2020, growth in the number of apps that support the FHIR data exchange standard was stagnant.