Charak Samhita
त्रिविधा भिषज इति- भिषक्छद्मचराः सन्ति सन्त्येके सिद्धसाधिताः। सन्ति वैद्यगुणैर्युक्तास्त्रिविधा भिषजो भुवि ॥५०॥
॥ Three Types of Physicians॥ There are three types of bhishag (physicians): - bhishag chhadmachara (pseudo physicians/impostor), - siddhasadhit (feigned/pretender physicians), and - vaidya guna yukta / jivitabhisara (true/genuine physicians with essential qualities) found in this world.
english translation
trividhA bhiSaja iti- bhiSakchadmacarAH santi santyeke siddhasAdhitAH। santi vaidyaguNairyuktAstrividhA bhiSajo bhuvi ॥50॥
hk transliteration by Sanscript