<ARTICLE> 5 <LEGEND> Exhibit 27.1, Financial Data Sheet </LEGEND> <CIK> 0000351721 <NAME> Advanced Neuromodulation Systems, Inc. <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> DEC-31-1999 <CASH> 8,353,658 <SECURITIES> 398,208 <RECEIVABLES> 3,926,543 <ALLOWANCES> 140,824 <INVENTORY> 5,999,217 <CURRENT-ASSETS> 20,369,233 <PP&E> 7,550,931 <DEPRECIATION> 1,862,361 <TOTAL-ASSETS> 43,554,774 <CURRENT-LIABILITIES> 4,191,076 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 435,418 <OTHER-SE> 36,602,877 <TOTAL-LIABILITY-AND-EQUITY> 43,554,774 <SALES> 20,578,384 <TOTAL-REVENUES> 29,478,384 <CGS> 6,628,983 <TOTAL-COSTS> 14,007,203 <OTHER-EXPENSES> (751,238) <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 44,861 <INCOME-PRETAX> 9,548,575 <INCOME-TAX> 3,545,294 <INCOME-CONTINUING> 6,003,281 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 6,003,281 <EPS-BASIC> .79 <EPS-DILUTED> .75