Forgot to submit insurance after annual physical, now on the hook for $495. Is an appeal likely to be successful and is there anything else I should add to my appeal letter?

Hi, I had a standard annual physical + a lab visit in October of 2019. I forgot to provide insurance information for the office visit…

View More Forgot to submit insurance after annual physical, now on the hook for $495. Is an appeal likely to be successful and is there anything else I should add to my appeal letter?