II 118th CONGRESS 2d Session S. 4078 IN THE SENATE OF THE UNITED STATES April 9, 2024 Mr. Mullin (for himself, Ms. Sinema , and Mr. Tillis ) introduced the following bill; which was read twice and referred to the Committee on Finance A BILL To amend title XI of the Social Security Act to require the Center for Medicare and Medicaid Innovation to test a model to improve access to specialty health services for certain Medicare and Medicaid beneficiaries.