EXHIBIT 31.2

**CERTIFICATION OF CFO PURSUANT TORULE 13a-14(a)/15d-14(a), AS ADOPTED PURSUANT TOSECTION 302 OF THE SARBANES-OXLEY ACT OF 2002**

            I, Joseph D. Moore, Executive Vice President, Chief Financial Officer and Treasurer of Vanguard Health Systems, Inc., certify that:

| 1.     |           | I have reviewed this quarterly report on Form 10-Q of Vanguard Health Systems, Inc.;                                                                                                                                                                                                                                |
|--------|--------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                     |                                                                                                                                                                                                                                                                                                                |
| 2.     |      | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements weremade, not misleading with respect to the period covered by this report;           |
|   |                     |                                                                                                                                                                                                                                                                                                                |
| 3.     |           | Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition,  results of operations and cash flows of theregistrant as of, and for, the periods presented in this report;                        |
|   |                     |                                                                                                                                                                                                                                                                                                                |
| 4.     |           | The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e) [clause omitted pursuant toSEC Release Nos. 33-8238 and 34-47986] for the registrant and have:               |
|   |                     |                                                                                                                                                                                                                                                                                                                |
|   |                     | (a)                                                                                                                                                                                                                                                                                                                 |      | Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including itsconsolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; |
|   |                     |                                                                                                                                                                                                                                                                                                                |   |   |
|   |                     | (b)                                                                                                                                                                                                                                                                                                                 |   | [Paragraph omitted pursuant to SEC Release Nos. 33-8238 and 34-47986]; |
|   |                     |                                                                                                                                                                                                                                                                                                                |   |   |
|   |                     | (c)                                                                                                                                                                                                                                                                                                                 |   | Evaluated the effectiveness of the registrant’s disclosure  controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the endof  the period covered by this report based on such evaluation; and |
|   |                     |                                                                                                                                                                                                                                                                                                                |   |   |
|   |                     | (d)                                                                                                                                                                                                                                                                                                                 |   | Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter inthe case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and |
|   |                     |                                                                                                                                                                                                                                                                                                                |   |   |
| 5.     |                     | The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of theregistrant’s board of directors (or persons performing the equivalent functions): |
|   |                     |                                                                                                                                                                                                                                                                                                                |
|   |                     | (a)                                                                                                                                                                                                                                                                                                                 |      | All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process,summarize and report financial information; and |
|   |                     |                                                                                                                                                                                                                                                                                                                |   |   |
|   |                     | (b)                                                                                                                                                                                                                                                                                                                 |   | Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting. |

Date:  May 9, 2007

                                                           /s/ Joseph D. Moore                                                                                       Joseph D. Moore                                                           Executive Vice President, Chief Financial Officer and Treasurer