Ambulatory surgical centers are outpatient facilities that perform surgical procedures. In most cases, patients at ambulatory surgical centers are released within 24 hours. Medicare Part B (Medical Insurance) covers facility service fees related to approved surgical procedures you get in these centers.
After you meet the Part B deductible , you pay 20% of the Medicare-Approved Amount to both the ambulatory surgical center and the doctor(s) who treat you. You pay nothing for certain preventive services (like a screening colonoscopy) if your doctor or other health care provider accepts assignment. However, you may have to pay other costs associated with the preventive services. For example, if your doctor removes a polyp during a screening colonoscopy, you may have to pay 20% of the Medicare-approved amount. You also pay all facility service fees for non-covered procedures you get in ambulatory surgical centers.
Visit Medicare.gov/procedure-price-lookup to get cost estimates for ambulatory surgical center outpatient procedures.