Nurses challenge new CHS/HMA monopoly’s misplaced priorities of high charges, cuts in care. Registered nurses from Greenbrier Valley Medical Center (GVMC), in Ronceverte, W. Va. are stepping up their campaign to make the public aware of their growing concerns about patient safety in their hospital in the wake of a recent merger, the National Nurses Organizing Committee (NNOC) announced today. Community Health Systems’ refusal to address nurses’ widespread concerns about patient safety was the driving force that galvanized GVMC RNs to organize and win representation with the NNOC in August of 2012.