US Anesthesia Partners of Colorado, at the Harvard Park Surgery Center, double bills. They have an anesthesiologist who bills $1,158 for anesthesia services, and THEN, when you are asleep, bring in an "assistant" nurse and SHE also bills $1,158 - and this for a 30 minute eye correction procedure. The billing company does not give a d**n - and apparently neither does United Health Care.