As filed with the Securities and Exchange Commission on December 9, 2004

Registration No. 333-                

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

FORM S-8

REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933

PEDIATRIX MEDICAL GROUP, INC.

1301 Concord Terrace
Sunrise, Florida 33323-2825

Pediatrix Medical Group, Inc. 2004 Incentive Compensation Plan
Pediatrix Medical Group of Puerto Rico Thrift and Profit Sharing Plan
Magella Healthcare Corporation Stock Option and Restricted Stock Purchase Plan

Thomas W. Hawkins, Esq.
Senior Vice President,
General Counsel and Secretary
Pediatrix Medical Group, Inc.
1301 Concord Terrace
Sunrise, Florida 33323-2825

(954) 384-0175

Copies to:

Ira N. Rosner, Esq.
Greenberg Traurig, P.A.
1221 Brickell Avenue
Miami, Florida 33131
(305) 579-0500

CALCULATION OF REGISTRATION FEE

EXPLANATORY NOTE

     This Registration Statement will be used to register shares of common stock, par value of $0.01 per share (the “Common Stock”), of the registrant, as well as, plan interests to be offered or sold pursuant to the Pediatrix Medical Group of Puerto Rico Thrift and Profit Sharing Plan (the “Puerto Rico Plan”). Pursuant to General Instruction A.2 to Form S-8, this Registration Statement is being filed concurrently with the filing of the Plan’s Annual Report on Form 11-K for the fiscal year ended December 31, 2003.

PART I. INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS

     The information specified by Items 1 and 2 of Part I of Form S-8 is omitted from this filing in accordance with the provisions of Rule 428 of the Securities Act of 1933, as amended (the “Securities Act”), and the introductory Note to Part I of Form S-8.

     The documents containing the information specified in Part I of Form S-8 will be sent or given to participating employees as specified by Rule 428(b) of the Securities Act. Such documents and the documents incorporated by reference herein pursuant to Item 3 of Part II hereof, taken together, constitute a prospectus that meets the requirements of Section 10(a) of the Securities Act.

PART II. INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3. Incorporation of Documents by Reference.

     The following documents, which have been filed with the Securities and Exchange Commission, are hereby incorporated by reference into this registration statement:

     In addition, all documents subsequently filed by us pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act (not including any information furnished under Items 2.02 or 7.01 of Form 8-K, which information is not incorporated by reference herein) prior to the filing of a post-effective amendment which indicates that all securities offered have been sold or which deregisters all securities then remaining unsold, will be deemed to be incorporated herein by reference and to be a part of this registration statement from the date of filing of such documents. Any statement contained in a document incorporated herein by reference will be deemed to be modified

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or superseded for purposes of this registration statement to the extent that a statement contained herein, or in a subsequently filed document incorporated herein by reference, modifies or supersedes the statement. Any statement modified or superseded will not be deemed, except as modified or superseded, to constitute a part of this registration statement.

Item 4. Description of Securities.

     Not applicable.

Item 5. Interests of Named Experts and Counsel.

     The validity of the securities being registered hereunder is being passed upon for us by Greenberg Traurig, P.A., Miami, Florida. Cesar Alvarez, the President and Chief Executive Officer of Greenberg Traurig, P.A., is one of our directors. As of December 9, 2004, Mr. Alvarez beneficially owns options to acquire 29,000 shares of our common stock, all of which are presently exercisable.

Item 6. Indemnification of Directors and Officers.

     The Florida Business Corporation Act permits a corporation to indemnify the following persons (using a case-by-case determination) against liabilities arising in the following circumstances:

     (i) any person who was or is party to any proceeding by reason of his or her service as a director, officer, employee or agent of the corporation; or

     (ii) any person serving in such capacity, at the request of the corporation, for another corporation or business entity.

     To be indemnified, a person seeking indemnification must have acted in good faith and in a manner he or she reasonably believed to be in, or not opposed to, the best interests of the corporation. With respect to any criminal action or proceeding, such person must have had no reasonable cause to believe his or her conduct was unlawful. Under Florida law the corporation can indemnify such a person who is a party to any proceeding by or in the right of the corporation against expenses and amounts paid in settlement which were actually and reasonably incurred in connection with the defense or settlement of the proceeding. Such indemnification may not exceed the board of directors’ estimated expense of litigating the matter to a conclusion. No indemnification shall be made in respect of any issue as to which such person shall have been adjudged to be liable unless, and only to the extent that, a court shall determine, in view of all circumstances, that such person is fairly and reasonably entitled to indemnity for such expenses which such court shall deem proper.

     Under the Florida Business Corporation Act, indemnification for expenses actually and reasonably incurred in the defense of any proceeding is mandatory to the extent that a director, officer, employee or agent is successful in such defense. Florida law also allows a corporation to provide any other or further indemnification or advancement of expenses to its directors, officers, employees or agents; however such indemnification or advancement of expenses may not extend to situations where a final adjudication establishes that such person’s actions, or omissions to act, were material to the cause of action so adjudicated and constitute:

     (i) a criminal violation, unless such person had reasonable cause to believe his conduct was lawful or had no reasonable cause to believe his conduct was unlawful;

     (ii) a transaction from which such person derived an improper personal benefit;

     (iii) in the case of a director, a circumstance under which the director would be liable for authorizing an improper distribution; or

     (iv) willful misconduct or conscious disregard for the best interests of the corporation in a proceeding by or in the right of the corporation to procure a judgment in its favor, or in a proceeding by or in the right of a shareholder.

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     The amended and restated articles of incorporation of the registrant provide that the registrant shall indemnify and may advance expenses to its officers and directors to the fullest extent permitted by the current law. The registrant has secured insurance covering the registrant and its directors and officers and those of its principal subsidiaries and affiliate companies against certain liabilities.

     The registrant has entered into indemnification agreements with each member of its board of directors and its executive officers. The indemnification agreements require, among other things, that the registrant indemnify to the fullest extent permitted by law and advance to each indemnified director and executive officer all related expenses, subject to reimbursement if it is subsequently determined that indemnification is not permitted. Under the indemnification agreements, the registrant must also indemnify and advance all expenses incurred by an indemnified director or executive officer seeking to enforce his or her rights under the indemnification agreements and purchase and generally maintain in effect directors’ and officers’ liability insurance during the term, and for a period of five years following the termination, of each director’s and executive officer’s employment. Although the indemnification agreements offer substantially the same scope of coverage afforded by law, they provide greater assurance to directors and executive officers that indemnification will be available, because, as contracts, they cannot be modified unilaterally in the future by the board of directors or the stockholders to eliminate the rights they provide.

Item 7. Exemption from Registration Claimed.

     Not applicable.

Item 8. Exhibits

     See “Exhibit Index” on page II-1 below.

     The registrant has submitted or will submit the Puerto Rico Plan and any amendment thereto to the Internal Revenue Service (“IRS”) in a timely manner and has made or will make all changes required by the IRS in order to qualify the Puerto Rico Plan.

Item 9. Undertakings

     (a) The undersigned registrant hereby undertakes:

          (1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

               (i) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933 (the “Securities Act”);

               (ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent not more than a 20 percent change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement;

               (iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;

provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed with or furnished to the

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Commission by the Registrant pursuant to Section 13 or 15(d) of the Exchange Act that are incorporated by reference in this registration statement.

          (2) That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

          (3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

     (b) The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing of the registrant’s annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

     (c) Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.

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SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Sunrise, State of Florida on this 9th day of December, 2004.

     Pursuant to the requirements of the Securities Act of 1933, the trustee (or such other person who administers the Pediatrix Medical Group of Puerto Rico Thrift and Profit Sharing Plan) has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Sunrise, State of Florida on this 9th day of December, 2004.

POWER OF ATTORNEY

     Each person whose signature appears below hereby appoints Thomas W. Hawkins and Karl B. Wagner his true and lawful attorney-in-fact with authority to execute in the name of each such person, and to file with the Securities and Exchange Commission, together with any exhibits thereto and other documents therewith, any and all amendments (including without limitation post-effective amendments) to this registration statement necessary or advisable to enable the registrant to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission in respect thereof, which amendments may make such other changes in the registration statement as the aforesaid attorney-in-fact executing the same deems appropriate. Pursuant to the requirements of the Act, this registration statement has been signed below by the following persons in the capacities and on the dates indicated.

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EXHIBIT INDEX

* Filed herewith.

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