POWER OF ATTORNEY

Know all these presents that the undersigned, does hereby make, constitute and appoint each of Jillian Bernard, Victoria Labriola and Erica Shevlin or any one of them, as a true and lawful attorney-in-fact and agent of the undersigned with full powers of substitution and revocation, for and in the name, place and stead of the undersigned (in the undersigned’s individual capacity), to execute and deliver such forms that the undersigned may be required to file with the U.S. Securities and Exchange Commission as a result of the undersigned’s ownership or transaction in securities of American Renal Associates Holdings, Inc. (i) pursuant to Section 16(a) of the Securities Exchange Act of 1934, as amended, including without limitation, statements on Form 3, Form 4 and Form 5 (including any amendments thereto) and (ii) in connection with any applications for EDGAR access codes, or any other documents necessary or appropriate to obtain codes and passwords enabling the undersigned to make electronic filings with the Securities and Exchange Commission, including without limitation, the Form ID. This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4 and 5 with regard to the undersigned’s ownership of or transactions in securities of American Renal Associates Holdings, Inc., unless earlier revoked in writing. The undersigned acknowledges that Jillian Bernard, Victoria Labriola and Erica Shevlin are not assuming any of the undersigned’s responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.




					By:		/s/ Michael Boxer
					Name:		Michael Boxer
					Date		December 12, 2019

BOXER MICHAEL 4