WASHINGTON, April 15 -- Sen. Sheldon Whitehouse, D-R.I., introduced the "ACO Assignment Improvement Act" on March 14, 2024. The text of the bill was released on April 13. S. 3939. A bill to amend title XVIII of the Social Security Act to improve the way beneficiaries are assigned under the Medicare shared savings program by also basing such assignment on primary care services furnished by nurse practitioners, physician assistants, and clinical nurse specialists; to the Committee on Finance. Th  more