Summer Sunshine: CMS Pushes Open Payments Deadline To June Or Later-thegraysheet: Device makers will have until at least June to register in CMS’ Open Payments system and submit detailed 2013 physician payment data, but they will need to submit aggregate payment data by March 31. CMS announced the new timeline Feb. 7 amid questions and confusion from stakeholders about whether CMS expected companies to submit data for the 2013 program year by March 31, as it states in the final rule released last February, or per other communications from the agency that suggests firms would have 90 days from when CMS opened the registration process.