Pediatrix Medical (MD) S-8 Registration of securities for employees

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on FormS-8 of MEDNAX, Inc. of our reportdated February 14, 2019 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 Form10-K for the year ended December 31, 2018.

/s/ PricewaterhouseCoopers LLP

Miami, Florida

May 30, 2019