Ridgetop
Herd Master
We have an HMO "cadillac plan" with no co-pay. When we reached Medicare age we wererequired to go on Medicare as a primary. Our HMO paid 100% of everything else. We are getting billed for a co-pay from Medicare. Our HMO is trying to take care of it but there is no one answering phones in the Medicare office. It is only about $20 but DH is peeved and won't pay it on principal because Medicare were supposed to send the bill to the HMO to start with. 
