Billing for an Ambulatory Surgical Center
  Billing for ASC facility charges should be set up so that: 
  
 - The ASC facility charges are billed as the Rendering Physician.
 - The physician (surgeon) charges are billed as the Referring Physician.
 
This is generally configured within NextGen® Enterprise PM and displays automatically on the ASC Ophthalmology Coding template, which is used to submit charges.