The median EBITDA margin for an ambulatory surgery center (ASC) is 20%, according to the “2019 ASC Benchmarking Survey” from HealthCare Appraisers Inc. The survey examined price increases, volume concentration, financial statement statistics, working capital needs, and revenue per case. The survey was developed in collaboration with the Ambulatory Surgery Center Association (ASCA) and received responses from 118 surgery centers.