<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM PACIFICARE
HEALTH SYSTEMS, INC'S CONSOLIDATED BALANCE SHEET AS OF DECEMBER 31, 1994, MARCH
31, 1995, JUNE 30, 1995 AND RELATED CONSOLIDATED STATEMENT OF INCOME FOR THE
QUARTERS ENDED DECEMBER 31, 1994, MARCH 31, 1995, AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          SEP-30-1995             SEP-30-1995             SEP-30-1995
<PERIOD-START>                             OCT-01-1994             OCT-01-1994             OCT-01-1994
<PERIOD-END>                               DEC-31-1994             MAR-31-1995             JUN-30-1995
<CASH>                                         218,590                 213,639                 280,219
<SECURITIES>                                   532,735                 622,349                 507,790
<RECEIVABLES>                                   73,883                  87,860                 108,763
<ALLOWANCES>                                       163                     331                     690
<INVENTORY>                                          0                       0                       0
<CURRENT-ASSETS>                               864,441                 955,053                 922,853
<PP&E>                                         155,743                 161,073                 169,324
<DEPRECIATION>                                  57,346                  62,373                  67,670
<TOTAL-ASSETS>                               1,158,551               1,375,617               1,346,252
<CURRENT-LIABILITIES>                          630,876                 698,719                 633,487
<BONDS>                                         97,590                  13,403                  12,287
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                           276                     307                     308
<OTHER-SE>                                     429,396                 662,775                 699,765
<TOTAL-LIABILITY-AND-EQUITY>                 1,158,551               1,375,617               1,346,252
<SALES>                                              0                       0                       0
<TOTAL-REVENUES>                               821,614               1,734,380               2,715,616
<CGS>                                                0                       0                       0
<TOTAL-COSTS>                                  676,299               1,426,148               2,238,504
<OTHER-EXPENSES>                               114,449                 239,918                 369,212
<LOSS-PROVISION>                                    90                   1,187                     392
<INTEREST-EXPENSE>                               1,684                   3,694                   4,723
<INCOME-PRETAX>                                 34,083                  80,125                 130,992
<INCOME-TAX>                                    14,026                  32,709                  53,328
<INCOME-CONTINUING>                             20,057                  47,416                  77,664
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                    20,057                  47,416                  77,664
<EPS-PRIMARY>                                     0.73                    1.71                    2.70
<EPS-DILUTED>                                     0.71                    1.67                    2.64
        

</TABLE>