1. Short title This Act may be cited as the Medicare Common Ownership Transparency Act of 2023 . 2. Report on integration in Medicare (a) Required MA and PDP reporting (1) MA plans Section 1857(e) of the Social Security Act ( 42 U.S.C. 1395w–27(e) ) is amended by adding at the end the following new paragraph: (6) Required disclosure of certain information relating to health care provider ownership (A) In general For plan year 2025 and for every third plan year thereafter, each MA organization offering an MA plan under this part during such plan year shall submit to the Secretary, at a time and in a manner specified by the Secretary— (i) the taxpayer identification number for each health care provider that was a specified health care provider with respect to such organization during such year; (ii) the total amount of incentive-based payments made to, and the total amount of shared losses recoupments collected from, such specified health care providers during such plan year