Report: 3.7M people would gain coverage in 2023 if remaining states expanded Medicaid eligibility August 10, 2022 AutoBot Consumer / Employer, Medicaid, Social Determinants, Urban Institute 0 If the 12 states that have not expanded Medicaid did so, the uninsured rate would drop by 29.1%, the report found. The populations that would benefit the most would be Black Americans, young adults and women of reproductive age.