As filed with the Securities and Exchange Commission on August 6, 2021

Registration No. 333-                

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM S-8

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

Mednax, Inc.

(Exact name of registrant as specified in its charter)

1301 Concord Terrace

Sunrise, Florida 33323

(Address of Principal Executive Offices)

Mednax, Inc. Amended and Restated 2008 Incentive Compensation Plan

(Full title of the plan)

Dominic J. Andreano, Esq.

Executive Vice President,

General Counsel and Secretary

Mednax, Inc.

1301 Concord Terrace

Sunrise, Florida 33323

(Name and address of agent for service)

(954) 384-0175

(Telephone number, including area code, of agent for service)

Copies to:

Joshua M. Samek, Esq.

DLA Piper LLP (US)

200 South Biscayne Boulevard

Suite 2500

Miami, Florida 33131-5341

(305) 423-8500

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act.  ☐

CALCULATION OF REGISTRATION FEE

EXPLANATORY NOTE

This Registration Statement on Form S-8 is being filed by Mednax, Inc., a Florida corporation (the “Registrant”), for the purpose of registering an additional 7,200,000 shares of its common stock, $0.01 par value per share (“Common Stock”), issuable pursuant to the Mednax, Inc. Amended and Restated 2008 Incentive Compensation Plan (the “Plan”). The Registrant’s shareholders approved the amendment and restatement of the Plan to, among other things, increase the number of shares of Common Stock available for issuance under the Plan at the Registrant’s Annual Meeting of Shareholders on May 12, 2021.

Pursuant to Instruction E of Form S-8, the contents of the previously filed Registration Statements on Form S-8 (File Nos. 333-151272, 333-181667 and 333-231826), as filed with the Securities and Exchange Commission (the “SEC”) on May 30, 2008, May 24, 2012 and May 30, 2019, respectively, as amended, are incorporated herein by reference, except to the extent supplemented, amended, or superseded by the information set forth or incorporated herein.

I-1

Part II. INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

The following documents, which have been filed with the SEC, 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, 7.01 or 9.01 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, shall 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 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. 8 Exhibits

II-1

II-2

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 6th day of August, 2021.

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POWER OF ATTORNEY

Each person whose signature appears below hereby appoints Mark S. Ordan, Dominic J. Andreano and C. Marc Richards such person’s true and lawful attorney-in-fact, each acting alone, with full powers of substitution and resubstitution, with authority to execute in the name of each such person, and to file with the SEC, 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 SEC 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 5.1

August 6, 2021

Mednax, Inc.

1301 Concord Terrace

Sunrise, Florida 33323

Re: Registration Statement on Form S-8 for the Mednax, Inc. Amended and Restated 2008 Incentive Compensation Plan

Ladies and Gentlemen:

On or about the date hereof, Mednax, Inc., a Florida corporation (the “Company”), is filing with the Securities and Exchange Commission (the “Commission”) a Registration Statement on Form S-8 (the “Registration Statement”), under the Securities Act of 1933, as amended (the “Act”). The Registration Statement relates to the offering and sale by the Company of up to an additional 7,200,000 shares of the Company’s common stock, par value $0.01 per share (the “Common Stock”), to be issued under the Mednax, Inc. Amended and Restated 2008 Incentive Compensation Plan (the “Plan”). We have acted as counsel to the Company in connection with the preparation and filing of the Registration Statement.

In connection therewith, we have examined and relied upon the original or a copy, certified to our satisfaction, of (i) the Amended and Restated Articles of Incorporation and Amended and Restated Bylaws of the Company, each as amended to the date hereof; (ii) records of corporate proceedings of the Company related to the Plan; (iii) the Registration Statement and exhibits thereto; and (iv) such other documents and instruments as we have deemed necessary for the expression of the opinions herein contained. In making the foregoing examinations, we have assumed the genuineness of all signatures and the authenticity of all documents submitted to us as originals, and the conformity to original documents of all documents submitted to us as certified or photostatic copies. We have also assumed that the offer and sale of shares of Common Stock complies and will comply in all respects with the terms, conditions and restrictions set forth in the Registration Statement and the Plan. As to various questions of fact material to this opinion, we have relied, to the extent we deemed reasonably appropriate, upon representations of officers or directors of the Company and upon documents, records and instruments furnished to us by the Company, without independently checking or verifying the accuracy of such documents, records and instruments.

Based upon the foregoing examination, we are of the opinion that assuming that (i) the Company maintains an adequate number of authorized and unissued shares of Common Stock available for issuance pursuant to the Plan and (ii) the consideration, if any, required to be paid in connection with the issuance of underlying shares of Common Stock issued pursuant to the Plan is actually received by the Company as provided in the Plan, the shares of Common Stock issued pursuant to the Plan will be duly authorized, validly issued, fully paid and nonassessable.

This opinion is rendered solely in connection with the transactions covered hereby. This opinion may not be relied upon for any other purpose, without our prior written consent.

We hereby consent to the filing of this opinion as an exhibit to the Registration Statement. In giving such consent, we do not admit that we come within the category of persons whose consent is required by Section 7 of the Act or the rules and regulations of the Commission thereunder.

The opinions expressed herein are specifically limited to the laws of the State of Florida and the federal laws of the United States of America and speak only as of the date hereof. We assume no obligation to update or supplement such opinions to reflect any facts or circumstances that may hereafter come to our attention or any changes in law that may hereafter occur.

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of Mednax, Inc. of our report dated February 18, 2021 relating to the financial statements, financial statement schedule and the effectiveness of internal control over financial reporting, which appears in Mednax, Inc.’s Annual Report on Form 10-K for the year ended December 31, 2021.

/s/ PricewaterhouseCoopers LLP

Miami, Florida

August 6, 2021