EXHIBIT 99.1

      The following certifications are being furnished solely to accompany the
Report pursuant to 18 U.S.C. ss. 1350, and pursuant to SEC Release No. 33-8212,
34-47551 are being "furnished" to the SEC rather than "filed" either as part of
the Report or as a separate disclosure statement, and are not to be incorporated
by reference into the Report or any other filing of the Company, whether made
before or after the date hereof, regardless of any general incorporation
language in such filing. The following certifications shall not be deemed
"filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as
amended, or otherwise subject to the liabilities of Section 18 or Sections 11
and 12(a)(2) of the Securities Act of 1933, as amended.

                    Certification of Chief Executive Officer

      Pursuant to 18 U.S.C.ss.1350, as created by Section 906 of the
Sarbanes-Oxley Act of 2002, the undersigned officer of Quality Systems, Inc.
(the "Company") hereby certifies, to such officer's knowledge, that:

      (i) the accompanying Annual Report on Form 10-K of the Company for the
fiscal year ended March 31, 2003 (the "Report") fully complies with the
requirements of Section 13(a) or Section 15(d), as applicable, of the Securities
Exchange Act of 1934, as amended; and

      (ii) the information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of the
Company.

Dated: June 23, 2003                      /s/ LOUIS E. SILVERMAN
                                           -------------------------------------
                                           Louis E. Silverman
                                           President and Chief Executive Officer

      A signed original of this written statement required by Section 906 has
been provided to Quality Systems, Inc. and will be retained by Quality Systems,
Inc. and furnished to the Securities and Exchange Commission or its staff upon
request.

                    Certification of Chief Financial Officer

      Pursuant to 18 U.S.C.ss.1350, as created by Section 906 of the
Sarbanes-Oxley Act of 2002, the undersigned officer of Quality Systems, Inc.
(the "Company") hereby certifies, to such officer's knowledge, that:

            (i) the accompanying Annual Report on Form 10-K of the Company for
      the fiscal year ended March 31, 2003 (the "Report") fully complies with
      the requirements of Section 13(a) or Section 15(d), as applicable, of the
      Securities Exchange Act of 1934, as amended; and

            (ii) the information contained in the Report fairly presents, in all
      material respects, the financial condition and results of operations of
      the Company.

Dated: June 23, 2003                                    /s/ PAUL HOLT
                                                         -----------------------
                                                         Paul Holt
                                                         Chief Financial Officer

      A signed original of this written statement required by Section 906 has
been provided to Quality Systems, Inc. and will be retained by Quality Systems,
Inc. and furnished to the Securities and Exchange Commission or its staff upon
request.


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