SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Treanor Andrew (Last) (First) (Middle) 34 LINCOLN STREET (Street) BELMONT MA 02478 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol IDX SYSTEMS CORP [ IDXC ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) GM, UK Operations
	3. Date of Earliest Transaction (Month/Day/Year) 12/31/2004
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/31/2004		I(1)		243	A	$26.316	7,588	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Non-Qualified Stock Option (right to buy)	$9.93							10/31/2003(2)	10/31/2011	Common Stock	3,750		3,750	D
Non-Qualified Stock Option (right to buy)	$15.77							03/11/2004(3)	03/11/2012	Common Stock	4,500		4,500	D
Non-Qualified Stock Option (right to buy)	$16.2188							08/29/2004(4)	08/29/2010	Common Stock	500		500	D
Non-Qualified Stock Option (right to buy)	$16.5938							08/25/2004(5)	08/25/2010	Common Stock	500		500	D
Non-Qualified Stock Option (right to buy)	$19.49							08/19/2004(6)	08/19/2013	Common Stock	6,000		6,000	D
Non-Qualified Stock Option (right to buy)	$27.815							07/23/2005(7)	07/23/2014	Common Stock	20,000		20,000	D
Non-Qualified Stock Option (right to buy)	$30.625							09/06/2004(8)	09/06/2006	Common Stock	3,000		3,000	D
Non-Qualified Stock Option (right to buy)	$31.5625							11/07/1998(9)	11/07/2007	Common Stock	2,500		2,500	D

Explanation of Responses:

1. Purchase under Section 423 Plan.

2. The option vests as to 1,250 shares on October 31, 2003, October 31, 2004, and October 31, 2005. The plan pursuant to which the reported option was granted provides for tax withholding rights.

3. The option vests as to 1,500 shares on March 11, 2004, March 11, 2005 and March 11, 2006. The plan pursuant to which the reported option was granted provides for tax withholding rights.

4. The option vests as to 500 shares on August 29, 2004. The plan pursuant to which the reported option was granted provides for tax withholding rights.

5. The option vests as to 500 shares on August 25, 2004. The plan pursuant to which the reported option was granted provides for tax withholding rights.

6. Grant to reporting person to purchase 6,000 shares of common stock under the IDX Systems Corporation 1995 Stock Option Plan. The option becomes exercisable in 25 percent increments of 1,500 shares each on August 19, 2004, August 19, 2005, August 19, 2006, and August 19, 2007. The plan pursuant to which the reported option was granted provides for tax withholding rights.

7. Grant to reporting person to purchase 20,000 shares of common stock under the IDX Systems Corporation 1995 Stock Option Plan. The option becomes exercisable in 25 percent increments of 5,000 shares each on July 23, 2005, July 23, 2006, July 23, 2007 and July 23, 2008. The plan pursuant to which the reported option was granted provides for tax withholding rights.

8. Grant to reporting person to purchase 1,500 shares of common stock under the IDX Systems Corporation 1995 Stock Option Plan. The option becomes exercisable in 25 percent increments of 375 shares each on September 6, 1997, September 6, 1998, September 6, 1999 and September 6, 2000. And another grant to purchase 1,500 shares of common stock under the IDX Systems Corporation 1995 Stock Option Plan. The option becomes exercisable in 25 percent increments of 375 shares each on September 6, 2004 with accelerated vesting if certain performance goals are met. The plan pursuant to which the reported option was granted provides for tax withholding rights.

9. Grant to reporting person to purchase 2,500 shares of common stock under the IDX Systems Corporation 1995 Stock Option Plan. The option becomes exercisable in 25 percent increments of 625 shares each on November 7, 1998, November 7, 1999, November 7, 2000 and November 7, 2001. The plan pursuant to which the reported option was granted provides for tax withholding rights.

	By: Diane L. Brown, Attorney-In-Fact For: Andrew J. Treanor	01/03/2005
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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