<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>                 3-MOS             3-MOS
<FISCAL-YEAR-END>             DEC-31-2000       DEC-31-1999
<PERIOD-START>                JAN-01-2000       JAN-01-1999
<PERIOD-END>                  MAR-31-2000       MAR-31-1999
<EXCHANGE-RATE>                         1                 1
<CASH>                             46,887            21,193
<SECURITIES>                       48,329            94,036
<RECEIVABLES>                     104,588            92,891
<ALLOWANCES>                       (3,628)           (2,969)
<INVENTORY>                             0                 0
<CURRENT-ASSETS>                  214,876           220,214
<PP&E>                             89,025            80,281
<DEPRECIATION>                     28,105            40,257
<TOTAL-ASSETS>                    291,747           278,562
<CURRENT-LIABILITIES>              49,824            63,483
<BONDS>                                 0                 0
<PREFERRED-MANDATORY>                   0                 0
<PREFERRED>                             0                 0
<COMMON>                              280               267
<OTHER-SE>                        232,593           203,636
<TOTAL-LIABILITY-AND-EQUITY>      291,747           278,562
<SALES>                            76,722            69,650
<TOTAL-REVENUES>                   76,722            69,650
<CGS>                              55,160            48,803
<TOTAL-COSTS>                      36,341            33,754
<OTHER-EXPENSES>                   (1,123)            1,171
<LOSS-PROVISION>                      454               617
<INTEREST-EXPENSE>                      2               637
<INCOME-PRETAX>                   (13,656)          (14,078)
<INCOME-TAX>                       (3,157)           (5,500)
<INCOME-CONTINUING>               (10,499)           (8,578)
<DISCONTINUED>                          0                 0
<EXTRAORDINARY>                         0                 0
<CHANGES>                               0                 0
<NET-INCOME>                      (10,499)           (8,578)
<EPS-BASIC>                         (0.38)            (0.31)
<EPS-DILUTED>                       (0.38)            (0.31)