Back from my ABIM break...
First, this is my underlying view: the administration of a medication that is designed to assault the immune system and is *by definition* (highly) toxic is akin to the performance of a procedure with respect to risk. At least a low-level surgery, though, of course, not a CABG or hemicolectomy. There are gradations, and infliximab, MTX, cisplatin, and nivolumab aren't equivalent. But there needs to be appropriate compensation for the risk a specialty takes on a day-to-day basis. There are PO meds to which this approach is relevant, absolutely. That's what I meant when I expressed a point of agreement earlier.
(I'm not sure which meds you're referencing when you say that "some of the most toxic drugs on earth are taken PO at home." Can you specify what you meant? Point of curiosity.)
Of course the system as it's designed is Rube Goldberg-esque and a bit of a Gordian Knot. And no, I'm not in love with the current reimbursement structure. It's beyond opaque.
But let's cut through the bull**** and come down to brass tacks with which we are all familiar: doctors (whether at the M4 level or the senior resident level), when acting rationally, seek to maximize their income:risk and income:effort ratios. Period. They will also take good, hard looks at whether additional fellowship training is worth the many opportunity costs. All the three-year IM subspecialties, to my knowledge, make good money. Each has its unique features and mechanisms by which its practice leads to good remuneration. The billing procedures for Heme/Onc are bizarre compered to those in GI, sure, but so are the billing procedures in CC vs those in Cardio.
I can apply this skepticism and frankly unprofessional suspicion to literally any specialty. A critical care doctor could, theoretically, pad billing by accepting unnecessary ICU upgrades or exaggerating the amount of "criticial care decision-making time." A dermatologist could biopsy obviously benign lesions. A cardiologist could perform unnecessary invasive angiographies. Etc. But I don't make those accusations, because I have respect for my colleagues in other specialties. (Even for Rad Onc, despite the fact that I'm extremely jealous of their incomes, residency lifestyles, and coolness of their day-to-day work 😆 .) Again, respect.
If you have a solution to the problem of how to administer IV chemotherapy in a way that's profitable to whichever entity is delivering it, be it an office or a hospital, please discuss it. But that's a sticking point - someone who provides a service can expect to profit from that service. Whether it's by taking a single right turn or three left turns is more a matter of systemic inefficiency than it is about whether the doctor at the end of the line deserves his or her income.