Medicare excess charges are an additional fee for Medicare Part B covered services on top of the Medicare-approved amount (Medicare assignment). These excess charges cannot exceed 15%. Luckily for Connecticut residents, it’s one of the few states that prohibits all healthcare providers from imposing any excess charges. It’s important to note, however, that if you travel to another state that does allow excess charges for medical care, you may be responsible for paying them. But it is rare for healthcare providers to bill for excess charges even in states where they’re allowed to.