SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549


                                -----------------


                                    FORM 8-K



                             Current Report Pursuant
                          to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934



                                February 20, 2003



                          SIERRA HEALTH SERVICES, INC.
             (Exact Name of Registrant as Specified in Its Charter)


          Nevada                                        1-8865
----------------------------------        ----------------------------------
(State or Other Jurisdiction                   (Commission File Number)
      of Incorporation)


                                   88-0200415
                             ----------------------
                                  (IRS Employer
                               Identification No.)


         2724 North Tenaya Way
             Las Vegas, Nevada                               89128
------------------------------------------------       --------------------
(Address of principal executive offices)                   (Zip Code)


Registrant's telephone number, including area code:  (702) 242-7000









                        Item 9. Regulation FD Disclosure

On Thursday,  February 20, 2003, Sierra Health Services, Inc., or Sierra, issued
a press release raising earnings estimates from continuing  operations for 2003,
based on preliminary data for January and February. A copy of that press release
is filed as Exhibit 99 to this report and incorporated herein by reference.

Item 9.  Regulation FD Disclosure

Exhibits                                        Description

99                                 Press Release Dated February 20, 2003

Statements in the press release  referred to above that are not historical facts
are  forward-looking  and based on  management's  projections,  assumptions  and
estimates;  actual results may vary materially.  Forward-looking  statements are
subject to certain  risks and  uncertainties,  which include but are not limited
to: 1)  potential  adverse  changes in  government  regulations,  contracts  and
programs,  including TRICARE,  Medicare,  Medicaid and legislative  proposals to
eliminate  or  reduce  ERISA  pre-emption  of state  laws  that  would  increase
potential  managed care  litigation  exposure;  2)  competitive  forces that may
affect pricing,  enrollment and benefit levels; 3) unpredictable  medical costs,
malpractice  exposure,  reinsurance  costs and inflation;  4) impact of economic
conditions;  5) changes in healthcare and workers' compensation reserves; 6) our
failure to win the  competitive  procurement  for the North Region  TRICARE Next
Generation  contract;  and 7) the amount of actual  proceeds  realized  upon the
final  disposition  of the  workers'  compensation  insurance  operation  or the
inability to dispose of such  business.  Further  factors  concerning  financial
risks and results are  contained in our Annual  Report on Form 10-K for the year
ended December 31, 2001.  Such statements are made pursuant to the "safe harbor"
provisions of the Private Securities  Litigation Reform Act of 1995 and identify
important risk factors that could cause our actual results to differ  materially
from those expressed in any projected,  estimated or forward-looking  statements
relating to Sierra.




                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.


                                         SIERRA HEALTH SERVICES, INC.
                                 ----------------------------------------------
                                         (Registrant)


Date:  February 20, 2003                  /S/ PAUL H. PALMER
                                 ----------------------------------------------
                                          Paul H. Palmer
                                          Senior Vice President
                                          Chief Financial Officer and Treasurer
                                          (Chief Accounting Officer)