Exhibit 99.1

40 IDX Drive
P.O. Box 1070
Burlington, VT 05402-1070
www.idx.com

Contacts:          Margo C. Happer
                           Vice President
                           Investor Relations and
                           Corporate Communications
                           802-859-6169

IDX SYSTEMS CORPORATION REPORTS
2005 SECOND QUARTER RESULTS

First Half Year-Over-Year Revenues Increase More Than 24%

BURLINGTON, VT – July 28, 2005 – IDX Systems Corporation (NASDAQ:IDXC) reported results today for the second quarter ended June 30, 2005.

Revenues for the second quarter 2005 increased to $146.7 million compared with $130.4 million in the second quarter of 2004. Revenues for the six-month period ended June 30, 2005 increased to $289.8 million compared with revenues of $232.9 million for the same period in 2004.

IDX reported second quarter 2005 net income of $5.1 million, or $0.16 per diluted share, compared to 2004 net income of $8.1 million, or $0.26 per diluted share. For the six-month period ended June 30, 2005, IDX reported net income of $13.7 million, or $0.42 per diluted share, compared with net income of $9.7 million, or $0.31 per diluted share, in the same period last year.

On June 1, 2005 IDX announced the termination of a contract with Fujitsu Services Limited and an anticipated resulting pretax charge for the loss on the contract of between $2.0 million and $4.0 million in the second quarter. The above actual results include a pretax charge for the contract termination loss of approximately $3.5 million, or $0.07 net of income taxes per diluted share. The company anticipates an additional pretax charge during the third quarter of 2005 relating to employee severance arrangements and other costs of between $0.5 million and $1.0 million.

IDX notes the following financial highlights as of June 30, 2005:

        •     Cash and marketable securities of $224.2 million.
        •     Days Sales Outstanding (DSOs) of 92 days, up substantially due to a delayed
              customer payment, which has since been received. Without the delay, DSOs would
              have been within the historical range and projected target of 80 – 85 days. IDX
              expects DSOs to return to these levels in the third quarter.
        •     New business bookings of $108.2 million, at the upper end of the normal quarterly range.
        •     Gain on sale of securities of $2.9 million.

“While second quarter results reflect higher-than-planned costs in the UK business, we believe recent efforts to refocus that aspect of the business will yield greater profitability in the future. We are seeing increased momentum across the domestic business, and our balance sheet is exceptionally strong, with no debt and record levels of cash and securities. We look forward to continued growth in the second half of 2005,” said James H. Crook, Jr., Chief Executive Officer of IDX.

IDX management reaffirmed 2005 revenue guidance of $610 – $630 million and earnings per share guidance of $1.25 – $1.31, excluding the charges associated with the contract termination loss, and 2006 guidance of $670 – $690 million in revenue and earnings per share of $1.50 – $1.60.

A conference call with investors will be held on July 28, 2005 at 11:00 am EDT to discuss these results. An audio Webcast of the call will be available at our Internet site: www.idx.com, Investor Relations, Multimedia.

About IDX

Founded in 1969, IDX Systems Corporation provides information technology solutions to maximize value in the delivery of healthcare, improve the quality of patient service, enhance medical outcomes, and reduce the costs of care. Our systems are deployed to serve approximately 150,000 physicians and are installed at over 3,400 customer sites, including more than 850 group practices and approximately 370 integrated delivery networks servicing more than 500 hospitals.

IDX also provides its enterprise clinical software as a subcontractor to BT, Local Service Provider for the United Kingdom National Health Service’s National Programme for Information Technology, an initiative to establish electronic patient records for 50 million patients.

The IDX web strategy includes browser technology, e-commerce and web-based tools – built using Internet architecture – that facilitates access for patients, physicians and care providers to vital health information and data managed by the IDX clinical, administrative, financial, and managed care products. IDX has approximately 2,400 full-time employees.

This press release contains forward-looking statements about IDX Systems Corporation that involve a number of risks and uncertainties. Among the important factors that could cause actual results to differ materially from those indicated by such forward-looking statements are uncertainties or difficulties in developing new services and system difficulties in completing and integrating acquisitions, difficulties in implementing systems, possible deferral, delay or cancellation by customers of computer system or service purchase decisions, possible delay of system installations and service implementations, development by competitors of new or superior technologies, changing economic, political and regulatory influences on the healthcare industry, possible disruptions in the national economy caused by terrorist activities and foreign conflicts, changes in product pricing policies, governmental regulation of IDX’s software and operations, the possibility of product-related liabilities, changes in our relationships with our partners, and factors detailed from time to time in IDX’s periodic reports and registration statements filed with the Securities and Exchange Commission, which important factors are incorporated herein by reference. IDX undertakes no obligation to update forward-looking statements to reflect changed assumptions, the occurrence of unanticipated events, or changes in future operating results, financial condition or business over time.

-tables follow-

IDX SYSTEMS CORPORATION

Consolidated Balance Sheets

(in thousands)


	*June 30,* *2005*		*December 31,* *2004*
	*(unaudited)*		*(audited)*
ASSETS

Cash and cash equivalents	$	46,574	$	67,346
Marketable securities		177,658		94,283
Accounts receivable, net		154,688		122,481
Deferred contract costs		26,837		24,209
Refundable income taxes		7,625		7,514
Prepaid and other current assets		11,917		8,199

Total current assets		425,299		324,032

Property and equipment, net		100,236		94,291
Deferred contract costs, less current portion		54,158		42,295
Capitalized software costs, net		6,626		5,596
Goodwill, net		7,065		7,163
Other intangible assets		2,514		2,514
Other assets		10,789		10,063
Deferred tax asset		8,070		10,961

Total assets	$	614,757	$	496,915

LIABILITIES AND STOCKHOLDERS’ EQUITY

Accounts payable, accrued expenses and other liabilities	$	83,449	$	84,388
Deferred revenue		59,610		62,278
Deferred tax liability		43,281		6,579

Total current liabilities		186,340		153,245

Deferred revenue		15,479		11,365

Total liabilities		201,819		164,610

Stockholders’ equity		412,938		332,305

Total liabilities and stockholders’ equity	$	614,757	$	496,915

IDX SYSTEMS CORPORATION

Consolidated Statements of Income

(in thousands, except for per share data)

(Unaudited)


	*Three Months Ended* *June 30,*						*Six Months Ended* *June 30,*
	*2005*			*2004*			*2005*			*2004*
Revenues
Systems sales	$	39,055		$	42,664		$	77,509		$	76,223
Maintenance and service fees		107,645			87,721			212,250			156,712

Total revenues		146,700			130,385			289,759			232,935

Operating expenses
Cost of systems sales		15,718			17,725			29,688			29,694
Cost of maintenance and services		74,409			58,860			146,748			104,699
Cost of sales - contract termination loss, net		3,545			—			3,545			—
Selling, general and administrative		31,581			26,464			62,260			54,891
Software development costs		15,466			15,259			29,160			29,146
Restructuring charge		—			387			—			387

Total operating expenses		140,719			118,695			271,401			218,817

Operating income		5,981			11,690			18,358			14,118

Other income (expense)
Other income (expense), net		(862	)		335			(45	)		451
Gain on investment		2,917			1,009			3,417			1,009

Total other income		2,055			1,344			3,372			1,460

Income before income taxes		8,036			13,034			21,730			15,578

Income tax provision		(2,957	)		(4,953	)		(8,040	)		(5,920	)

Net income	$	5,079		$	8,081		$	13,690		$	9,658

Basic earnings per share	$	0.16		$	0.27		$	0.44		$	0.32

Basic weighted average shares outstanding		31,060			30,181			30,999			30,031

Diluted earnings per share	$	0.16		$	0.26		$	0.42		$	0.31

Diluted weighted average shares outstanding		32,197			31,572			32,225			31,503

Earnings per share numbers may not foot due to rounding.

The above financial statement includes the following special items:

	Three Months Ended June 30,						Six Months Ended June 30,
	2005			2004			2005			2004
Contract termination loss, net		3,545			—			3,545			—
Tax effect of included special items		(1,312	)		—			(1,312	)		—

Total net effect of included special items	$	2,233		$	—		$	2,233		$	—

IDX SYSTEMS CORPORATION

Statement of Cash Flows

(in thousands)

(unaudited)


	Three Months Ended June 30,
	2005			2004
OPERATING ACTIVITIES

Net income	$	5,079		$	8,081
Adjustments to reconcile net income to net cash (used in) provided by operating activities:

Depreciation		4,666			4,143
Amortization		241			1,126
Gain on investments		(2,917	)		(1,009	)
Deferred taxes		3,552			4,171
Increase in allowance for doubtful accounts		114			294
Tax benefit related to exercise of non-qualified stock options		441			1,190
Foreign currency transaction loss (gain), net		1,395			(207	)
Contract termination loss, net		3,545
Loss on disposition of equipment		—			—
Restructuring costs		—			387
Reduction in fair value of investment		389			—
Other		98			102
Changes in operating assets and liabilities:
Accounts and uynbilled receivables		(24,684	)		(8,980	)
Deferred contract costs		(12,053	)		(8,297	)
Prepaid expenses and other assets		(1,646	)		(4,655	)
Accounts payable and accrued expenses		2,778			1,879
Federal and state income taxes		(2,316	)		(1,243	)
Deferred revenue		986			22,282

Net cash (used in) provided by operating activities		(20,332	)		19,264
INVESTING ACTIVITIES

Purchase of property and equipment, net		(7,368	)		(4,464	)
Purchase of marketable securities		(7,100	)		(2,000	)
Proceeds from sale of marketable securities and other investments		34,686			10,714
Other assets		(2,099	)		(856	)

Net cash provided by investing activities		18,119			3,394
FINANCING ACTIVITIES

Proceeds from sale of common stock		3,044			4,772
Other financing activities		(3	)		—

Net cash provided by financing activities		3,041			4,772

Effect of exchange rate fluctuations on cash and cash equivalents		781			(406	)

Net increase in cash and cash equivalents		1,609			27,024

Cash and cash equivalents at beginning of period		44,965			18,820

Cash and cash equivalents at end of period	$	46,574		$	45,844

IDX SYSTEMS CORP 8-K