<ARTICLE>                     5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM COMPANY'S
CONDENSED CONSOLIDATED BALANCE SHEET AND STATEMENT OF INCOME TAXES AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCED TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK>                         0001001185
<NAME>                        IDX SYSTEMS CORPORATION
<MULTIPLIER>                  1,000
<CURRENCY>                    U.S. DOLLARS

                                          
<PERIOD-TYPE>                 6-MOS             6-MOS
<FISCAL-YEAR-END>             DEC-31-2000       DEC-31-1999
<PERIOD-START>                JAN-01-2000       JAN-01-1999
<PERIOD-END>                  JUN-30-2000       JUN-30-1999
<EXCHANGE-RATE>                         1                 1
<CASH>                             36,053             7,338
<SECURITIES>                       49,334            63,281
<RECEIVABLES>                      96,326           114,518
<ALLOWANCES>                       (4,005)           (2,724)
<INVENTORY>                             0                 0
<CURRENT-ASSETS>                  209,828           203,520
<PP&E>                             98,375            94,093
<DEPRECIATION>                     32,513            43,520
<TOTAL-ASSETS>                    291,458           274,104
<CURRENT-LIABILITIES>              71,461            63,227
<BONDS>                                 0                 0
<PREFERRED-MANDATORY>                   0                 0
<PREFERRED>                             0                 0
<COMMON>                              280               357
<OTHER-SE>                        210,722           201,285
<TOTAL-LIABILITY-AND-EQUITY>      291,458           274,104
<SALES>                           156,318           160,905
<TOTAL-REVENUES>                  156,318           160,905
<CGS>                             115,820           105,098
<TOTAL-COSTS>                      91,966            72,434
<OTHER-EXPENSES>                   (2,130)              381
<LOSS-PROVISION>                    1,058               733
<INTEREST-EXPENSE>                      2               858
<INCOME-PRETAX>                   (49,338)          (17,008)
<INCOME-TAX>                      (16,816)           (6,180)
<INCOME-CONTINUING>               (32,522)          (10,828)
<DISCONTINUED>                          0                 0
<EXTRAORDINARY>                         0                 0
<CHANGES>                               0                 0
<NET-INCOME>                      (32,522)          (10,828)
<EPS-BASIC>                         (1.16)            (0.39)
<EPS-DILUTED>                       (1.16)            (0.38)