Quality Systems, Inc. ("QSI") and its wholly-owned subsidiary, MicroMed Healthcare Information Systems, Inc. ("MicroMed"), develop and provide computer-based practice management, medical records, and e-business applications for medical and dental group practices.
   

May 13, 2002

Quality Systems Inc. Announces Fourth-Quarter and Fiscal 2002 Earnings News Release and Conference Call
 TUSTIN, Calif. — May 13, 2002 — Quality Systems, Inc. (NASDAQ: QSII) announced today that it will release its fiscal 2002 fourth-quarter and year-end financial results on Thursday, May 23, 2002, before the market open, followed by a conference call on the same day at 1:00 p.m. EDT (10:00 a.m. PDT).

To participate in the conference call, please dial the following number five to ten minutes prior to the scheduled conference call time: 877-586-7724. There is no pass code required for this call.

If you are unable to participate in the call at this time, a replay will be available on Thursday, May 23, at 1:00 p.m. PDT, through Thursday, May 30, at 1:00 p.m. PDT; call 800-642-1687 and enter the conference ID number 4135730. International callers may access the replay by dialing (706) 645-9291 and entering the same conference ID number.

A transcript of the conference call will be made available on the QSII Web site (www.qsii.com).

Quality Systems is a developer and provider of computer-based practice management and electronic medical records systems and e-business applications for dental and medical group practices marketed under the QSI and NextGen product names.

This news release may contain forward-looking statements, including those related to revenue and net income, that involve a number of risks and uncertainties. Among the important factors that could impact actual results are volume and timing of systems sales and installations; length of sales cycles and installation process; the possibility that the products will not achieve market acceptance; seasonal patterns of sales and customer buying behavior; the development by competitors of new or superior technologies; delays in product development; undetected errors or bugs in software; product liability; changing economic, political or regulatory influences in the health-care industry; changes in product-pricing policies; competitive pressures; possible regulation of the company's software by the U.S. Food and Drug Administration; general economic conditions; and the risk factors detailed from time to time in Quality Systems' periodic reports and registration statements filed with the Securities and Exchange Commission.