SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response: 0.5

1. Name and Address of Reporting Person* SHALALA DONNA E (Last) (First) (Middle) 1301 CONCORD TERRACE (Street) SUNRISE FL 33323 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 05/06/2010	3. Issuer Name and Ticker or Trading Symbol MEDNAX, INC. [ MD ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	525	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Options (Right to Buy)(1)	05/06/2011(2)	05/06/2020	Common Stock	10,177	58.71	D

Explanation of Responses:

1. Stock Options granted pursuant to Issuer's 2008 Incentive Compensation Plan in connection with initial election to the Issuer's Board of Directors.

2. Stock Options vest in three equal installments on May 6, 2011, May 6, 2012 and May 6, 2013.

	/s/ Thomas W. Hawkins, Attorney-in-fact	05/07/2010
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

POWER OF ATTORNEY
For Executing Forms 3, 4, and 5

	Know all men by these presents, that the undersigned hereby appoints each of Thomas W. Hawkins
and Vivian Lopez-Blanco, with full power of substitution, the true and lawful attorneys-in-fact to:

(1)	execute for and on behalf of the undersigned SEC Forms 3, 4, and 5 relating to the
undersigned's interest in the Company's securities, in accordance with Section 16(a) of the
Securities Exchange Act of 1934, as amended, and the rules thereunder;

(2)	do and perform any and all acts for and on behalf of the undersigned which may be
necessary or desirable to complete the execution of any such Form 3, 4, or 5 and the timely
filing of such form with the United States Securities and Exchange Commission and any
other appropriate authority; and

(3)	take any other action of any type whatsoever in connection with the foregoing which, in the
opinion of the attorney-in-fact, may be of benefit to, in the best interest of, or legally required
by, the undersigned, it being understood that the documents executed by the attorney-in-fact
on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as the attorney-in-fact may approve in his discretion.

       The undersigned hereby grants to the above attorneys-in-fact full power and authority to do and
perform all and every act and thing whatsoever requisite, necessary and proper to be done in the exercise
of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might
or could do if personally present, with full power of substitution or revocation, hereby ratifying and
confirming all that such attorneys-in-fact, shall lawfully do or cause to be done by virtue of this Power of
Attorney and the rights and powers herein granted.  The undersigned acknowledges that the above
attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming any of the
undersigned's responsibilities to comply with Sections 13(d) or 16 of the Securities Exchange Act of 1937.

	The authority of Thomas W. Hawkins and Vivian Lopez-Blanco under this Power of Attorney shall
continue until the undersigned is no longer required to file Forms 3, 4, or 5 with regard to the undersigned's
ownership of or transactions in securities of the Company, unless earlier revoked in writing.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of
this 6th day of  May, 2010.


										/s/ Donna E. Shalala, PhD.
										Donna E. Shalala, PhD.