<TABLE> <S> <C>


<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 REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK>                         0001001185
<NAME>                        IDX SYSTEMS CORPORATION
<MULTIPLIER>                  1,000
<CURRENCY>                    U.S. DOLLARS

<S>                           <C>                <C>               <C>
<PERIOD-TYPE>                 12-MOS             12-MOS            12-MOS
<FISCAL-YEAR-END>             DEC-31-1999        DEC-31-1998       DEC-31-1997
<PERIOD-START>                JAN-01-1999        JAN-01-1998       JAN-01-1997
<PERIOD-END>                  DEC-31-1999        DEC-31-1998       DEC-31-1997
<EXCHANGE-RATE>                         1                  1                 1
<CASH>                             18,487             11,558            14,741
<SECURITIES>                       49,872            113,574           101,826
<RECEIVABLES>                     114,059            104,794            71,072
<ALLOWANCES>                       (3,300)            (2,615)           (1,664)
<INVENTORY>                             0                  0                 0
<CURRENT-ASSETS>                  192,161            237,434           200,832
<PP&E>                            108,653             73,728            62,832
<DEPRECIATION>                     50,388             37,779            30,105
<TOTAL-ASSETS>                    271,147            289,223           245,458
<CURRENT-LIABILITIES>              55,429             67,763            60,808
<BONDS>                                 0                  0                 0
<PREFERRED-MANDATORY>                   0                  0                 0
<PREFERRED>                             0                  0                 0
<COMMON>                              278                274               268
<OTHER-SE>                        206,236            209,937           177,587
<TOTAL-LIABILITY-AND-EQUITY>      271,147            289,223           245,458
<SALES>                           340,999            350,187           272,007
<TOTAL-REVENUES>                  340,999            350,187           272,007
<CGS>                             216,554            196,480           154,606
<TOTAL-COSTS>                     137,094            118,713           122,291
<OTHER-EXPENSES>                     (476)            (4,000)           (5,146)
<LOSS-PROVISION>                    1,912              1,512               815
<INTEREST-EXPENSE>                    866              1,312               630
<INCOME-PRETAX>                   (12,173)            38,994               256
<INCOME-TAX>                       (4,229)            22,160             8,238
<INCOME-CONTINUING>                (7,944)            16,834            (7,982)
<DISCONTINUED>                          0                  0                 0
<EXTRAORDINARY>                         0                  0                 0
<CHANGES>                               0                  0                 0
<NET-INCOME>                       (7,944)            16,834            (7,982)
<EPS-BASIC>                         (0.29)              0.62             (0.30)
<EPS-DILUTED>                       (0.29)              0.60             (0.30)




</TABLE>