Miracleworker

Description for MIRACLEWORKER by Jack M Bickham:

Andra Dover came back to Oklahoma as much to rest as to work with her mentor, Dr. Max Shrader, the Miracleworker. What she found is murder.

Every doctor, even Shrader, loses patients; Dr. Max takes each death personally. That's why, when the company came to him with the drug, he was willing to use it, even if approval hadn't been given by the government. He doesn't care about the company's investment in the research and development of the anti-cancer medication, only in the chance to help people.

But the company cares very much about the money, enough to threaten murder...and to make goon on the threats!