1. Medicaid expansion waivers: what will we learn? Author(s): Rudowitz, Robin, authorMusumeci, MaryBeth, authorGates, Alexandra, author Publication: Menlo Park, CA : Henry J. Kaiser Family Foundation, March 2016 Subject(s): Health Care ReformMedicaid -- organization & administrationPilot ProjectsUnited StatesUnited States. Department of Health and Human Services.United States.