<PAGE>
SCHEDULE 14A INFORMATION
Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934 (Amendment No. )
Filed by the Registrant / /
Filed by a party other than the Registrant / /
Check the appropriate box:
/ / Preliminary Proxy Statement
/ / Confidential, for Use of the Commission Only (as permitted by Rule
14a-6(e)(2))
/ / Definitive Proxy Statement
/X/ Definitive Additional Materials
/ / Soliciting Material Pursuant to Section 240.14a-12
Tenet Healthcare Corporation
--------------------------------------------------------------------------------
(Name of Registrant as Specified In Its Charter)
--------------------------------------------------------------------------------
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
Payment of Filing Fee (Check the appropriate box):
/X/ No fee required.
/ / Fee computed on table below per Exchange Act Rules 14a-6(i)(1)
and 0-11.
(1) Title of each class of securities to which transaction applies:
------------------------------------------------------------------------
(2) Aggregate number of securities to which transaction applies:
------------------------------------------------------------------------
(3) Per unit price or other underlying value of transaction computed
pursuant to Exchange Act Rule 0-11 (set forth the amount on which the
filing fee is calculated and state how it was determined):
------------------------------------------------------------------------
(4) Proposed maximum aggregate value of transaction:
------------------------------------------------------------------------
(5) Total fee paid:
------------------------------------------------------------------------
/ / Fee paid previously with preliminary materials.
/ / Check box if any part of the fee is offset as provided by Exchange Act Rule
0-11(a)(2) and identify the filing for which the offsetting fee was paid
previously. Identify the previous filing by registration statement number,
or the Form or Schedule and the date of its filing.
(1) Amount Previously Paid:
------------------------------------------------------------------------
(2) Form, Schedule or Registration Statement No.:
------------------------------------------------------------------------
(3) Filing Party:
------------------------------------------------------------------------
(4) Date Filed:
------------------------------------------------------------------------
<PAGE>
(As printed in the Wall Street Journal on October 4, 2000)
Attention Tenet Healthcare Shareholders
REAL PERFORMANCE.
REAL PROGRESS.
You've seen the ads and read Dr. Pearce's criticisms. The facts tell a
different story. With the strong commitment of our employees and the
confidence of our shareholders, the Tenet team has demonstrated real
progress. The numbers speak for themselves.
[GRAPH] [GRAPH]
[GRAPH] [GRAPH]
PROTECT YOUR INVESTMENT. CONTINUE TENET'S SOLID
RECORD OF PROGRESS. VOTE THE WHITE PROXY CARD TODAY!
For assistance in voting your proxy, please call our proxy solicitor,
GEORGESON SHAREHOLDER COMMUNICATIONS INC. AT 800.223.2064
================================================================================
[LOGO]
