RE: Because all she has offered was her own claims and no documentation to back it up?
AN honest and capable reporter could easily check the claim by visiting her clinic and investigating some of her patients or looking at her cases to determine the truth or falsity of her claims.
Firstly, she has been in medical practice in the USA for over a decade.
Has her license been revoked because of any malpractice?
If not, go on to the next item... who are these patients, have they been diagnosed with CoVid-19?
Next item... which pharmacies have filled her Hydroxychloroquine prescriptions?
These basic information could easily be checked if you want documentation.
Why are there no reporters doing these?
An honest and capable doctor wouldn't rely on reporters, fake news and all that. An honest and capable doctor would publish her results for review by her peers. Including all the information you mentioned.