VHS Vanguard Health Systems, Inc.

       Vanguard Health Systems, Inc. (the “Company”)

(b). Address of Issuer’s Principal Executive Offices:

       20 Burton Hills Boulevard, Suite 100, Nashville, Tennessee 37215

This statement is being filed by the Reporting Persons who were a party to the 2011 Stockholders’ Agreement of Vanguard Health Systems, Inc., a Delaware corporation (the “Company”), dated as of June 21, 2011, as amended (the “Stockholders Agreement”), in connection with the completion on October 1, 2013 of the previously-announced merger (the “Merger”) of the Company with Orange Merger Sub, Inc. (“Merger Sub”), a wholly owned subsidiary of Tenet Healthcare Corporation (“Parent”), pursuant to the terms of the Agreement and Plan of Merger, dated as of June 24, 2013 (the “Merger Agreement”), by and among Parent, Merger Sub and the Company.

(i) Blackstone FCH Capital Partners IV L.P.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: State of Delaware

(ii) Blackstone Health Commitment Partners L.P.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: State of Delaware

(iii) Blackstone Capital Partners IV-A L.P.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: State of Delaware

(iv) Blackstone Family Investment Partnership IV-A L.P.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: State of Delaware

(v) Blackstone FCH Capital Partners IV-A L.P.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: State of Delaware

page 17

(vi) Blackstone FCH Capital Partners IV-B L.P.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: State of Delaware

(vii) Blackstone Health Commitment Partners-A L.P.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: State of Delaware

(viii) Blackstone Management Associates IV L.L.C.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: State of Delaware

(ix) BCP IV Side-by-Side GP L.L.C.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: State of Delaware

(x) Blackstone Holdings III L.P.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: Quebec, Canada

(xi) Blackstone Holdings III GP L.P.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: State of Delaware

(xii) Blackstone Holdings III GP Management L.L.C.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: State of Delaware

(xiii) The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: State of Delaware

page 18

(xiv) Blackstone Group Management L.L.C.

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: State of Delaware

(xv) Steven A. Schwarzman

c/o The Blackstone Group L.P.

345 Park Avenue

New York, NY 10154

Citizenship: United States

The foregoing persons are hereinafter sometimes collectively referred to as the “Reporting Persons.”

As of October 1, 2013, Blackstone FCH Capital Partners IV L.P. directly held 0 shares of Common Stock (as defined below), Blackstone Health Commitment Partners L.P. directly held 0 shares of Common Stock, Blackstone Capital Partners IV-A L.P. directly held 0 shares of Common Stock, Blackstone Family Investment Partnership IV-A L.P. directly held 0 shares of Common Stock, Blackstone FCH Capital Partners IV-A L.P. directly held 0 shares of Common Stock, Blackstone FCH Capital Partners IV-B L.P. directly held 0 shares of Common Stock and Blackstone Health Commitment Partners-A L.P. directly held 0 shares of Common Stock (collectively, the “Blackstone Funds”). The general partner of each of the Blackstone Funds, other than Blackstone Family Investment Partnership IV-A L.P., is Blackstone Management Associates IV L.L.C. The general partner for Blackstone Family Investment Partnership IV-A L.P. is BCP IV Side-by-Side GP L.L.C. The majority of the membership interests in Blackstone Management Associates IV L.L.C. are held by Blackstone Holdings III L.P. The sole member of BCP IV Side-by-Side GP L.L.C. is Blackstone Holdings III L.P. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone’s senior managing directors and controlled by its founder, Mr. Schwarzman.

Common Stock, par value $0.01 (the “Common Stock”)

922036 207

page 19

Not Applicable.

(a) Amount beneficially owned:

As of the date hereof, each of the Reporting Persons may be deemed to be the beneficial owner of the shares listed on such Reporting Person’s cover page.

(b) Percent of class:

None of the Reporting Persons are beneficial owners of shares of Common Stock as of the date hereof.

(c) Number of Shares as to which the Reporting Person has:

A. Blackstone FCH Capital Partners IV L.P.

     (i) Sole power to vote or to direct the vote:

                    0

     (ii) Shared power to vote or to direct the vote:

                    0

     (iii) Sole power to dispose or to direct the disposition of:

                    0

     (iv) Shared power to dispose or to direct the disposition of:

                    0

B. Blackstone Health Commitment Partners L.P.

     (i) Sole power to vote or to direct the vote:

                    0

     (ii) Shared power to vote or to direct the vote:

                    0

     (iii) Sole power to dispose or to direct the disposition of:

                    0

     (iv) Shared power to dispose or to direct the disposition of:

                    0

C. Blackstone Capital Partners IV-A L.P.

     (i) Sole power to vote or to direct the vote:

                    0

     (ii) Shared power to vote or to direct the vote:

                    0

     (iii) Sole power to dispose or to direct the disposition of:

                    0

     (iv) Shared power to dispose or to direct the disposition of:

                    0

page 20

D. Blackstone Family Investment Partnership IV-A L.P.

     (i) Sole power to vote or to direct the vote:

                    0

     (ii) Shared power to vote or to direct the vote:

                    0

     (iii) Sole power to dispose or to direct the disposition of:

                    0

     (iv) Shared power to dispose or to direct the disposition of:

                    0

E. Blackstone FCH Capital Partners IV-A L.P.

     (i) Sole power to vote or to direct the vote:

                    0

     (ii) Shared power to vote or to direct the vote:

                    0

     (iii) Sole power to dispose or to direct the disposition of:

                    0

     (iv) Shared power to dispose or to direct the disposition of:

                    0

F. Blackstone FCH Capital Partners IV-B L.P.

     (i) Sole power to vote or to direct the vote:

                    0

     (ii) Shared power to vote or to direct the vote:

                    0

     (iii) Sole power to dispose or to direct the disposition of:

                    0

     (iv) Shared power to dispose or to direct the disposition of:

                    0

G. Blackstone Health Commitment Partners-A L.P.

     (i) Sole power to vote or to direct the vote:

                    0

     (ii) Shared power to vote or to direct the vote:

                    0

     (iii) Sole power to dispose or to direct the disposition of:

                    0

     (iv) Shared power to dispose or to direct the disposition of:

                    0

page 21

H. Blackstone Management Associates IV L.L.C.

     (i) Sole power to vote or to direct the vote:

                    0

     (ii) Shared power to vote or to direct the vote:

                    0

     (iii) Sole power to dispose or to direct the disposition of:

                    0

     (iv) Shared power to dispose or to direct the disposition of:

                    0

I. BCP IV Side-by-Side GP L.L.C.

     (i) Sole power to vote or to direct the vote:

                    0

     (ii) Shared power to vote or to direct the vote:

                    0

     (iii) Sole power to dispose or to direct the disposition of:

                    0

     (iv) Shared power to dispose or to direct the disposition of:

                    0

J. Blackstone Holdings III L.P.

     (i) Sole power to vote or to direct the vote:

                    0

     (ii) Shared power to vote or to direct the vote:

                    0

     (iii) Sole power to dispose or to direct the disposition of:

                    0

     (iv) Shared power to dispose or to direct the disposition of:

                    0

K. Blackstone Holdings III GP L.P.

     (i) Sole power to vote or to direct the vote:

                    0

     (ii) Shared power to vote or to direct the vote:

                    0

     (iii) Sole power to dispose or to direct the disposition of:

                    0

     (iv) Shared power to dispose or to direct the disposition of:

                    0

L. Blackstone Holdings III GP Management L.L.C.

     (i) Sole power to vote or to direct the vote:

                    0

page 22

     (ii) Shared power to vote or to direct the vote:

                    0

     (iii) Sole power to dispose or to direct the disposition of:

                    0

     (iv) Shared power to dispose or to direct the disposition of:

                    0

M. The Blackstone Group L.P.

    (i) Sole power to vote or to direct the vote:

                    0

    (ii) Shared power to vote or to direct the vote:

                    0

    (iii) Sole power to dispose or to direct the disposition of:

                    0

    (iv) Shared power to dispose or to direct the disposition of:

                    0

N. Blackstone Group Management L.L.C.

    (i) Sole power to vote or to direct the vote:

                    0

    (ii) Shared power to vote or to direct the vote:

                    0

    (iii) Sole power to dispose or to direct the disposition of:

                    0

    (iv) Shared power to dispose or to direct the disposition of:

                    0

O. Steven A. Schwarzman

    (i) Sole power to vote or to direct the vote:

                    0

    (ii) Shared power to vote or to direct the vote:

                    0

    (iii) Sole power to dispose or to direct the disposition of:

                    0

    (iv) Shared power to dispose or to direct the disposition of:

                    0

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following:   x

page 23

Not Applicable.

Not Applicable.

Not Applicable.

The Stockholders Agreement, pursuant to which the Reporting Persons may have been deemed part of a “group,” was terminated as a result of the Merger as of October 1, 2013.

Not Applicable.

page 24

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: October 3, 2013

page 25

page 26

page 27