title: Senior community blazes trail as Medicare risk provider.
mesh_terms: D000368:Aged; D015142:Baltimore; D003284:Contract Services; D006279:Health Maintenance Organizations / Q000191:economics / Q000458:organization & administration*; D016852:Housing for the Elderly / Q000191:economics / Q000458:organization & administration*; D006801:Humans; D016345:Medicare Part B / Q000458:organization & administration*; D017146:Models, Organizational; D011320:Primary Health Care; D020414:Risk Sharing, Financial; D014481:United States