    <SEC-DOCUMENT>0001193125-21-091206-index.html : 20210323
    <SEC-HEADER>0001193125-21-091206.hdr.sgml : 20210323
    <ACCEPTANCE-DATETIME>20210323161808
    ACCESSION NUMBER:		0001193125-21-091206
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		33
    CONFORMED PERIOD OF REPORT:	20210512
    FILED AS OF DATE:		20210323
    DATE AS OF CHANGE:		20210323

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			MEDNAX, INC.
    		CENTRAL INDEX KEY:			0000893949
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-HOSPITALS [8060]
    		IRS NUMBER:				263667538
    		STATE OF INCORPORATION:			FL
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-12111
    		FILM NUMBER:		21764999

    	BUSINESS ADDRESS:
    		STREET 1:		1301 CONCORD TERRACE
    		CITY:			SUNRISE
    		STATE:			FL
    		ZIP:			33323
    		BUSINESS PHONE:		9543840175

    	MAIL ADDRESS:
    		STREET 1:		1301 CONCORD TERRACE
    		CITY:			SUNRISE
    		STATE:			FL
    		ZIP:			33323

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	PEDIATRIX MEDICAL GROUP INC
    		DATE OF NAME CHANGE:	19950801
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>d142151ddef14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: d142151ddef14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>2
    <FILENAME>d142151ddef14a1.pdf
    <DESCRIPTION>COURTESY PDF
    <TEXT>
    Document 2 - file: d142151ddef14a1.pdf

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g142151g05i02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g142151g05i02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g142151g08h44.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g142151g08h44.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g142151g09a25.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g142151g09a25.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g142151g10r56.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g142151g10r56.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g142151g10x22.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g142151g10x22.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>g142151g11m49.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g142151g11m49.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>g142151g15u27.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: g142151g15u27.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>g142151g16n15.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: g142151g16n15.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>g142151g18l82.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: g142151g18l82.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>g142151g21y38.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: g142151g21y38.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>g142151g28t64.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: g142151g28t64.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>g142151g30u01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: g142151g30u01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>g142151g37y47.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: g142151g37y47.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>g142151g53r76.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: g142151g53r76.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>g142151g55q61.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: g142151g55q61.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>g142151g56k83.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: g142151g56k83.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>g142151g63c03.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: g142151g63c03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>g142151g65m34.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: g142151g65m34.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>g142151g68o80.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: g142151g68o80.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>g142151g73y46.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: g142151g73y46.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>g142151g74d34.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: g142151g74d34.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>g142151g76h64.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: g142151g76h64.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>g142151g78d97.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: g142151g78d97.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>g142151g84v05.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: g142151g84v05.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>g142151g86r58.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: g142151g86r58.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>g142151g90u25.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: g142151g90u25.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>g142151g99g01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: g142151g99g01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>g142151g99g02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: g142151g99g02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>g142151g99g03.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 31 - file: g142151g99g03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>g142151g99g04.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: g142151g99g04.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>g142151g99g05.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 33 - file: g142151g99g05.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>