UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington D.C. 20549

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:

Mednax, Inc.

(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):

P.O. BOX 8016, CARY, NC 27512-9903 Mednax, Inc. Important Notice Regarding the Availability of Proxy Materials Shareholders Meeting to be held on May 12, 2022 For Shareholders of record as of March 14, 2022 This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. This is not a ballot. You cannot use this notice to vote your shares. We encourage you to access and review all of the important information contained in the proxy materials before voting. To view the proxy materials, and to obtain directions to attend the meeting, go to: www.proxydocs.com/MD To vote your proxy while visiting this site, you will need the 12 digit control number in the box below. Under United States Securities and Exchange Commission rules, proxy materials do not have to be delivered in paper. Proxy materials can be distributed by making them available on the internet. For a convenient way to view proxy materials and VOTE go to www.proxydocs.com/MD Have the 12 digit control number located in the shaded box above available when you access the website and follow the instructions. If you want to receive a paper or e-mail copy of the proxy material, you must request one. There is no charge to you for requesting a copy. In order to receive a paper package in time for this year’s meeting, you must make this request on or before May 02, 2022. To order paper materials, use one of the following methods. INTERNET www.investorelections.com/MD TELEPHONE (866) 648-8133 * E-MAIL paper@investorelections.com When requesting via the Internet or telephone you will need the 12 digit control number located in the shaded box above. * If requesting material by e-mail, please send a blank e-mail with the 12 digit control number (located above) in the subject line. No other requests, instructions OR other inquiries should be included with your e-mail requesting material. Mednax, Inc. Meeting Type: Annual Meeting of Shareholders Date: Thursday, May 12, 2022 Time: 10:30 AM, Eastern Time Place: Annual Meeting to be held virtually via live webcast—please visit www.proxydocs.com/MD for more details. You must register to attend the meeting online and/or participate at www.proxydocs.com/MD SEE REVERSE FOR FULL AGENDA

Mednax, Inc. Annual Meeting of Shareholders THE BOARD OF DIRECTORS RECOMMENDS A VOTE: FOR ON PROPOSALS 1, 2, 3 AND 4 PROPOSAL 1. to elect, each for a term expiring at the next annual meeting or until a successor has been duly elected and qualified, the following individuals to Mednax’s Board of Directors: 1.01 Laura A. Linynsky 1.02 Thomas A. McEachin 1.03 Roger J. Medel, M.D. 1.04 Mark S. Ordan 1.05 Michael A. Rucker 1.06 Guy P. Sansone 1.07 John M. Starcher, Jr. 1.08 Shirley A. Weis 2. to ratify the appointment of PricewaterhouseCoopers LLP as our independent registered public accounting firm for the 2022 fiscal year; 3. to conduct an advisory vote regarding the compensation of our named executive officers for the 2021 fiscal year; 4. to approve our Second Amended and Restated Articles of Incorporation; and 5. to consider and act upon such other business as may properly come before the annual meeting.