Being a Vaidya is NOT considered a good thing as per taittIriya samhitA kANDa vi. 4. 9 :
For them they drew this cup for the Açvins; then indeed did they replace the head of the sacrifice; in that (the cup) for the Açvins is
drawn, (it is) to restore the sacrifice. The gods said of these two,
'Impure are they, wandering among men and physicians.' Therefore
a Brahman should not practise medicine, for the physician is impure,
unfit for the sacrifice. Having purified them by the Bahispavamana
(Stotra) they drew for them this cup for the Açvins; therefore (the
cup) for the Açvins is drawn when the Bahispavamana has been sung.
Therefore by one who knows thus the Bahispavamana should be performed;
verily he purifies himself. Their skill as physicians they deposited
in three places, in Agni a third, in the waters a third, in the
Brahman a third. Therefore one should put beside him a pot of water
and sit on the right hand of a Brahman when practising medicine;
all medicine he performs thereby, his remedy becomes effective.