Patient Electronic Access (Stage 1, Core 11 and Stage 2, Core Measure 7) Clinical Summaries (Stage 1, Core Measure 12 and Stage 2, Core Measure 8) Secure Electronic Messaging (Stage 2, Core Measure 17). For those in Stage 2, you need to enroll 50% of your patients in the patient portal and have 5% of your patients send you a secure message..