Dental Insurance

Question by mojamojo99:
How much can your dental office bill you if you have dual insurance?
I am having much difficulty in getting an answer that makes sense from my dental office insurance biller. I had dual insurance at the time I had services. In my experience billing medical items, we always wrote off anything that a contracted insurance provider said we had to write off. If they had co-insurance remaining per the EOB, then and only then did we bill the secondary.
1) My dental office is not writing off anything per the primary insurance EOB with which they are contracted. 2) The are billing different dollar amounts for the same procedures to the 2 different insurances, 3) They are trying to tell me that if the insurance did not grant for something they can bill me more than the EOB says is my responsibility- ie. if insurance granted for only amalgam filling vs. resin composite (I think this might be fraudulent since they are a participating provider), 4) CDA’s website says only balance billing up to the lowest contracted fee, office is saying 2nd ins is controlling.

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