Billed v Allowed Amount

Hi everyone!

I think I just went to the scammiest doctor’s office (in-network) in Manhattan without realizing it and now i’m stuck with a huge bill.

Long story short I went to for an annual check up and was told I needed an allergy test and lung test and that both were covered by my insurance. A few weeks later I get slapped with a 1k bill.

I’m looking at my EOB, and for the allergy test, there’s 1) the amount billed by the provider, 2) the plan discount, 3) the allowed by plan, and 4) the plan paid.

For each of the two tests, the allowed by plan amount is the difference between the billed by provider and the plan discount. For every other test, my health insurance paid the amount allowed. But for two of the tests, the plan paid 0, leaving me with about $1k to pay on the bill.

I’m not sure why I’m being billed this amount but I’m wondering if it’s some mistake on the insurance’s part? Anyone have any insight.

I also have a secondary insurance that I forgot to submit to the doctor’s office. It’s pretty sparse of a plan, but would submitting it maybe lower the amount of the bill? Any help would be very much appreciated as I don’t know how i’m going to afford the bill and the doctor’s billing department essentially yelled at me when I tried to ask for help/understand the bill.

Thank you so much.