EX-23.1 4 d56151_ex23-1.txt INDEPENDENT AUDITORS' CONSENT INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statements No. 2-82773, 33-31949, 333-63131 and 333-67115 on Form S-8 of our report dated May 22, 2001, appearing in this Annual Report on Form 10-K of Quality Systems, Inc. for the year ended March 31, 2003. /s/ Deloitte & Touche LLP DELOITTE & TOUCHE LLP Costa Mesa, California June 23, 2003 34