JMIR Med Inform is a top-rated tier A journal, according to experts and researchers in the field.
JMIR Medical Informatics was accepted for the Emerging Sources Citation Index (ESCI) in May 2015. As explained by Clarivate, "Journals covered initially in ESCI may be evaluated later for coverage in SCIE, SSCI or AHCI.". According to Clarivate, JMIR Medical Informatics (as of January 2018) "remains in evaluation", but we have no timeline for its' coverage in the Science Citation Index Expanded (SCIE).
For questions about the impact factor, please contact its' producer, Clarivate. Sadly, as publisher we have limited influence on which journals Clarivate decides to cover. We invite you to fill in their form, as perhaps this will encourage them to speed up their evaluation.