So far I've gone through three endocrinologists saying they specialize in transgender related HRT who have proven to not be able to address even basic stuff.
The first, like yours, refused any kind of bloodwork. They said levels fluctuate so accurate readings are hard to get (which is true to some degree) and that they're very expensive (my last one if uninsured was $300+, can go higher). They threw a prescription at me and said to come back in six months.
The second said I should stop progesterone as it's a hormone only present during pregnancy (yes, she told me it's only present during pregnancy...), and also thought I might have a pituitary tumor because my high prolactin levels. She never bothered to check that the Cyproterone Acetate I take says right on the box that it can raise prolactin levels.
My most recent endocrinologist knew I was taking estrogen sublingually, knew I had three drastically different levels without any variation, and had no idea why. Wanted to run all these tests, but when I suggested maybe it's because the estrogen goes in the bloodstream all at once and quickly dissipates since it's taken sublingually. They said, "wow, that's a great observation that's probably the case."
All of them claimed to specialize in transgender related HRT, yet I had to plead for bloodwork, educate them on progesterone, do my own investigating about my levels, etc. Either they were ignorant or apathetic. But this isn't uncommon with most healthcare that I've experienced here in the US and I'd assume elsewhere in the world. I saw someone visit their doctor for a severe migraine and they sent them off with Advil. Another patient had severe GERD and they told them to get Tums...
I agree with Jessica. It's common knowledge Spiro is a very effective AA, just run away and find a better endo.