This variable indicates the date the fourth Comprehensive Medication Review (CMR) with written summary in CMS standardized format was received.
CMS created the MTM File from information submitted by Part D plan sponsors to CMS’s Health Plan Management System (HPMS).
For 2013 – 2015, this field is only populated if the variable CMR_RECEIVED_NUM is greater than 4. There are fields for five CMR dates, see variables (CMR_RECEIVED_DT1 - CMR_RECEIVED_DT5). Note that for 2016+ there are only two CMR_RECEIVED_DT fields; this field is not available.
Source: CMS (HPMS Files)