Look for changes to your Medicare risk contract in 1999.
D002204:Capitation Fee; D014487:Centers for Medicare and Medicaid Services, U.S.; D003284:Contract Services; D005375:Financial Audit; D006279:Health Maintenance Organizations / Q000191:economics* / Q000331:legislation & jurisprudence; D006297:Health Services Accessibility; D020398:Medicare Part C / Q000191:economics / Q000331:legislation & jurisprudence*; D020414:Risk Sharing, Financial / Q000331:legislation & jurisprudence*; D014481:United States