Absolutely.
I took one at Quest and one at Labcorp.
Insurance covered it in full.
My cr@ppy insurance told me only one COVID test would be covered, and wouldn't specify over what period of time, whether it was per exposure/ bout of symptoms, or whether they'd cover one PCR and one antibody or just one total.
I just go down to the local public hospital where there's no wait and I can theoretically get a daily PCR or antibody test (but not both) at no cost. I don't even think they attempt to bill my insurance.