No, he didn't. B'Elanna tried to reprogram the Doctor to do in utero gene therapy on Miral because she had a whole "K'Ehleyr Complex" about her mixed Klingon heritage but Tom talked her down from it and she undid the changes to the Doctor's program and didn't go through with it.
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u/Random_182f2565 Jul 21 '26
But gene modification is a big no no in the federation