Gooch asked: "I have been to several doctors who are perfectly willing to accept regular Medicare but they won't accept UHC PPO. Since the doctor gets paid exactly the same amount using either regular Medicare or the UHC PPO, I don't understand why they won't accept UHC PPO. Does anyone have an explanation of this situation?"
Medicare reimbursement rates are low compared to "under age 65" plans. Providers accept Original Medicare patients and the payment rates because of the high volume of patients. There is no incentive to see a few Medicare Advantage (MA) patients when those slots can be filled with under 65 patients whose insurance pays more.
Gooch asked: "The PPO will pay the same rate as Medicare pays whether the doctor is In Network or Out of Network. The doctors I am discussing are Out of Network and I know they have a perfect right to refuse me. I just question why. If they get paid the same from Medicare as from UHC, why do they care?"
The UHC literature is either inaccurate or you are interpreting it incorrectly. Unless the provider is a specialist in high demand, UHC PPO in-network reimbursement is generally slightly lower than Original Medicare's low reimbursement rates. There are no regulations for MA in-network reimbursement. Federal regulations only require MA PPO out-of-network providers to be reimbursed the same amount as Original Medicare when they choose to accept the patient. Again, the provider receives higher reimbursement from under age 65 patients.
MA plans have a higher tendancy to deny claims until medical notes explaining the reason for treatment are received. This creates more administrative work for the provider's staff.
Gooch wrote: "The doctors I refer to all accept Medicare Assignment according to their Provider listing on Medicare.gov. The doctors have all told me that if I switched to Regular Medicare, they would process my claim to Medicare. However as long as I was on the UNC PPO plan, they would not process my claim even though UHC is acting as a MAC (Medicare Administrative Contractor). The doctor's position is that since they are out of network from UHC, they don't have to process my claim. My position is that if they accept Medicare Assignment, they are required to submit a claim to Medicare as a part of the agreement that they "Accept Medicare Assignment" even if they have to send the bill to a MAC."
By enrolling in an MA plan, you have cut all ties to Original Medicare's claim assignment rights and claim processing rules. If a provider submitted your claim to Original Medicare, the MAC would reject it as "not enrolled" regardless of assignment since you are not on Original Medicare. MA plans are private plans and not a contracted MAC and members follow the MA plan's rules while enrolled. The out-of-network provider could see you and could submit the claim to UHC but they have no incentive to do so since under age 65 patients generate more revenue with less administrative headaches.