From the February 2020 Webinar, 2019 MIPS Data Submission: Advice for Solo and Small Group Practices
Can we submit Quality by QRDA III file uploaded to the QPP Portal and also report Improvement Activities by attesting directly on the QPP Portal?
Yes, you can submit data for the Quality performance category by uploading a QRDA III file to the QPP Portal. You can also submit an attestation for the Improvement Activities performance category via the QPP Portal. For more information on data submission, please see the 2019 QPP Data Submission User Guide. For more information on how to attest to the Improvement Activities performance category, please watch the Manual Attestation of Improvement Activities Measures video.