Nautic Partners-backed Innovative Renal, a healthcare services provider, agreed to acquire American Renal Associates, a dialysis services provider, from Centerbridge Partners, a private investment firm, for $853m. “We are excited to bring together ARA management and IRC’s complementary team of executives as we look to support the Company in executing against its strategic plan built on a differentiated, patient-centric approach to the renal care market,” Dan Killeen, Nautic Principal.