Vanguard Health Systems To Participate In Investor Conference

Vanguard Health Systems, Inc. (NYSE: VHS) (the “Company”) announced today that its management will participate in the 30 th Annual J.P. Morgan Healthcare Conference in San Francisco, California. The Company’s presentation will begin at 5:30 p.m. (ET) on January 11, 2012 and will be available through a live audio webcast of the presentation. To access the webcast, listeners should go to the investor relations section of the Company’s website at http://investor.vanguardhealth.com.

If you cannot listen to the live broadcast, a replay of the presentation will be available on the investor relations section of the Company’s website.

About Vanguard Health Systems www.vanguardhealth.com

Vanguard Health Systems owns and operates 28 acute care and specialty hospitals and complementary facilities and services in metropolitan Chicago, Illinois; metropolitan Phoenix, Arizona; metropolitan Detroit, Michigan; San Antonio, Texas; Harlingen and Brownsville, Texas; and Worcester and metropolitan Boston, Massachusetts. Vanguard Health Systems’ strategy is to develop locally branded, comprehensive health care delivery networks in urban markets.

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