X0306 4 2019-02-12 0 0000893949 MEDNAX, INC. MD 0001674717 Pepia John C 1301 CONCORD TERRACE SUNRISE FL 33323 0 1 0 0 Principal Accounting Officer Common Stock 2019-02-12 4 A 0 7253 0.00 A 35877 D Restricted shares granted pursuant to the Issuer's Amended and Restated 2008 Incentive Compensation Plan, as amended, in connection with annual equity award. The vesting of the restricted shares is subject to performance-based criteria with any shares earned vesting in three equal installments on March 1, 2020, March 1, 2021 and March 1, 2022. Includes 41 shares that were acquired by Reporting person through Issuer's Employee Stock Purchase Plan. /s/ Dominic J. Andreano, Attorney-in-Fact 2019-02-14