An ASC must be certified and approved to enter into a written agreement with CMS.
An ASC must be certified and approved to enter into a written agreement with CMS. Participation as an ASC is limited to any distinct entity that operates exclusively for the purpose of providing surgical services to patients not requiring hospitalization and in which the expected duration of services would not exceed 24 hours following an admission.
The regulatory definition of an ASC does not allow the ASC and another entity, such as an adjacent physician's office, to mix functions and operations in a common space during concurrent or overlapping hours of operations. CMS does permit two different Medicare-participating ASCs to use the same physical space, so long as they are temporally separated. That is, the two facilities must have entirely separate operations, records, etc., and may not be open at the same time.
