<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM NATIONAL
DIAGNOSTICS, INC. FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1997, AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               SEP-30-1997
<CASH>                                          39,325
<SECURITIES>                                         0
<RECEIVABLES>                                3,099,368
<ALLOWANCES>                                   739,106
<INVENTORY>                                          0
<CURRENT-ASSETS>                             2,578,481
<PP&E>                                       9,989,183
<DEPRECIATION>                               4,258,732
<TOTAL-ASSETS>                               8,809,763
<CURRENT-LIABILITIES>                        5,597,463
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           779
<OTHER-SE>                                    (331,720)
<TOTAL-LIABILITY-AND-EQUITY>                 8,809,763
<SALES>                                              0
<TOTAL-REVENUES>                             7,737,500
<CGS>                                                0
<TOTAL-COSTS>                                4,152,251
<OTHER-EXPENSES>                             4,255,536
<LOSS-PROVISION>                                74,704
<INTEREST-EXPENSE>                             512,236
<INCOME-PRETAX>                             (1,182,523)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                         (1,182,523)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                (1,182,523)
<EPS-PRIMARY>                                     (.37)
<EPS-DILUTED>                                     (.37)