Millions of patients could be shut out of care if federal funding to support Community Health Centers expires after September 2015.  If lawmakers do not act to fix this funding cliff, and if more states do not expand Medicaid, the number of patients cared for health centers could fall more than 25 percent—or 7 million patients—by 2020. These findings are revealed in research from the Geiger Gibson/RCHN Community Health Foundation Research Collaborative at Milken Institute School of Public Health (Milken Institute SPH) at the George Washington University.