The cost of a colonoscopy usually ranges from $2,101 to $3,764, with an average cost of $3,081. For patients with health insurance, out-of-pocket costs can range from zero to more than $1,000. You may also be billed around $250 for anesthesiologist services, and another $200 - $300 if polyps need to be removed during the procedure. Independent Imaging Centers are often cheaper than hospitals, and more open to negotiating prices. Some Independent Imaging Facilities offer 15% - 50% discount when paid in full by cash or credit within 60 days. Some government programs, hospitals and organizations provide free or low-cost colonoscopy for uninsured of underinsured individuals.