Vanguard Health Systems, Inc. (NYSE: VHS) (the “Company”) announced today that its management will participate in the Bank of America Merrill Lynch Leveraged Finance Conference in Boca Raton, Florida. The Company’s presentation will begin at 10:50 a.m. (ET) on December 5, 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 www.vanguardhealth.com. The Company’s management will also be presenting at the Oppenheimer 23 rd Annual Healthcare Conference on December 12, 2012 at 3:20 p.m. (ET) in New York City, New York. This presentation can be accessed on the Investor Relations section of the Company’s website at www.vanguardhealth.com. If you cannot listen to the live broadcasts, a replay of the presentations will be available on the Investor Relations section of the Company’s website. About Vanguard Health Systems www.vanguardhealth.com The Company 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. The Company’s strategy is to develop locally branded, comprehensive health care delivery networks in urban markets.