1. How has the ACA Medicaid expansion affected providers serving the homeless population: analysis of coverage, revenues, and costs Author(s): Warfield, Matt, authorDiPietro, Barbara, authorArtiga, Samantha, author Publication: Menlo Park, CA : Henry J. Kaiser Family Foundation, March 2016 Subject(s): Health Care Costs -- statistics & numerical dataHealth PersonnelHealth Services -- economicsHomeless Persons -- legislation & jurisprudenceInsurance Coverage -- statistics & numerical dataMedicaid -- statistics & numerical dataUnited StatesUnited States.