Healthcare access inequalities

Research a project or program that is working to reduce health inequality in the US. This could be a not-for-profit working on social justice in healthcare, a legislative program that is working to pass laws to improve healthcare access, or an effort to reduce vaccine inequality. Explain the goals of the program and how effective it has been in achieving them.
Also, discuss the causes of health inequality specific to the program that you have chosen and the groups affected by access inequality.