Exhibit 99.1

FOR IMMEDIATE JOINT RELEASE

SIEMENS                                     NextGen
                                            Healthcare Information Systems, Inc.
FOR IMMEDIATE RELEASE                                      CONTACT: Molly Grasso

                                                       Siemens Medical Solutions
                                                                  (610) 448-4729
                                                        molly.grasso@siemens.com

                                                        CONTACT: Jennifer Kuesel

                                          NextGen Healthcare Information Systems
                                                                  (215) 657-7010
                                                             JKuesel@nextgen.com

SIEMENS AND NEXTGEN HEALTHCARE ANNOUNCE STRATEGIC ALLIANCE TO SPEED IT ADOPTION
AND CONNECTIVITY BETWEEN ACUTE AND AMBULATORY CARE PROVIDERS
Siemens to Provide NextGen Healthcare's Ambulatory Electronic Medical Records
and Enterprise Practice Management Solutions

      MALVERN, PA and HORSHAM, PA, February 10, 2005, 8:00 AM EST -Siemens
Medical Solutions, a world leader in medical equipment and information
technology (IT) solutions, and NextGen Healthcare Information Systems, a leading
provider of ambulatory Electronic Medical Records (EMR) and practice management
software, today announced a worldwide strategic alliance to meet the unique
healthcare IT needs of the physician practice market. This relationship
leverages Siemens' expertise in enterprise IT systems and advanced medical
imaging technologies for the acute care and specialty environments and NextGen
Healthcare's industry leadership in ambulatory EMRs and practice management
software.

      Under the terms of the agreement, Siemens will add NextGen Healthcare's
EMR and practice management solutions to its global solutions portfolio. The
alliance further extends the value of Siemens' highly penetrated enterprise
solutions by enabling Continuity of Care Record (CCR) connectivity and
interoperability across acute and ambulatory care settings.

                                     -more-




FOR IMMEDIATE JOINT RELEASE

SIEMENS

Siemens and NextGen Announce Strategic Alliance, page 2

The agreement also includes worldwide distribution rights in the diagnostic
imaging center (DIC) market, a fast-growing specialty market segment for Siemens
imaging modalities and integrated RIS/PACS offering, SIENET(R) Cosmos.

      "The NextGen(R) partnership complements Siemens' ambulatory strategy and
enables us to support the management and retrieval of all clinical data,
including diagnostic images, across the entire continuum of care," said Tom
Miller, President, IT Division, Siemens Medical Solutions. "As we continue to
develop integrated solutions within the Soarian(R) Enterprise Suite, this
alliance enables Siemens to immediately deliver ambulatory solutions across the
entire healthcare spectrum, providing complete solutions that meet providers'
inpatient and outpatient needs."

      Patrick Cline, President of NextGen Healthcare, added "This alliance
provides NextGen Healthcare with the opportunity to significantly accelerate our
expansion into international markets and additional domestic markets. We're also
excited about aligning with a worldwide leader to deliver interoperable
solutions capable of significantly improving patient care."

      As the federal government continues its push to automate and interconnect
all points of the healthcare continuum, speed of technology adoption at the
individual practice level and the ability to securely share clinical data and
diagnostic images residing in ambulatory settings is crucial to the mission.

      Currently, more than 700 physician practices representing more than 30
different specialties use NextGen Healthcare's EMR and practice management
systems. Siemens' healthcare IT division delivers solutions to over 5,000
healthcare organizations worldwide. Siemens, in combination with NextGen
Healthcare's clinically rich products and services, can now offer its customers
and prospects a one-stop source for electronic health records and
interoperability.

                                     -more-




FOR IMMEDIATE JOINT RELEASE

SIEMENS

Siemens and NextGen Announce Strategic Alliance, page 3

      In leveraging NextGen's knowledge-based templates, Siemens will provide
healthcare organizations and physician practices with access to longitudinal
health records, streamlined processes across acute and ambulatory settings, and
opportunities for enhanced patient safety, physician satisfaction and increased
procedure volume.

      Siemens (booth #617) and NextGen (booth #1635) will showcase their
alliance at the Healthcare Information and Management Systems Society (HIMSS)
Annual Conference and Exhibit, being held February 13-17, 2005, in Dallas,
Texas. The companies will demonstrate interoperability between Siemens' Soarian
Enterprise Clinicals and NextGen EMR by facilitating the secure transfer of a
CCR between systems. Both Siemens and NextGen Healthcare are founding members of
the HIMSS Electronic Health Record Vendors Association (EHRVA) and participants
in the HIMSS Interoperability Showcases.

About NextGen Healthcare

      NextGen Healthcare Information Systems, Inc., a wholly owned subsidiary of
Quality Systems, Inc. (NASDAQ: QSII), develops and markets computer-based
practice management and electronic medical records systems for medical and
dental group practices. Please visit www.nextgen.com and www.qsii.com for
additional information.

About Siemens

      Siemens Medical Solutions of Siemens AG (NYSE: SI) with headquarters in
Malvern, Pennsylvania and Erlangen, Germany, is one of the largest suppliers to
the healthcare industry in the world. The company is known for bringing together
innovative medical technologies, healthcare information systems, management
consulting, and support services, to help customers achieve tangible,
sustainable, clinical and financial outcomes.

                                     -more-




FOR IMMEDIATE JOINT RELEASE

SIEMENS

Siemens and NextGen Announce Strategic Alliance, page 4

Employing approximately 31,000 people worldwide and operating in more than 120
countries, Siemens Medical Solutions reported sales of 7.07 billion EUR, orders
of 8.12 billion EUR and group profit of 1.05 billion EUR for fiscal 2004. More
information can be obtained by visiting
http://www.usa.siemens.com/medical-pressroom.

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