I found a recommendation for RL Logistix in San Fransisco, their website is . I've never used them, but it looks exactly like what you're looking for.

@Kool ******

I commented to another reply, but we tried the DTV route, but the hospitals/doctors that I spoke to (including the one I consulted in November) all wanted to only set one appointment and then develop a treatment plan. We might end up having to do some combo of Retirement for my wife and tourist for me, then I get a treatment plan laid out and then I leave to apply for a DTV at a nearby consulate... but thank you for the warning, it looks like the medical treatment visa is a dead end for us.

@Brandon ***********

So, reviewing the LA consulate's webpages on visas, the "Visiting non-Thai Family" page has a footnote: *Please note that the family of Non-O does not qualify for a Non-Immigrant Visa type O. They may instead apply for a Tourist visa or other types of visas they are qualified for.*. I think that means the dependent visa idea is a non-starter as well. If they offer this for the O-A they don't mention it anywhere in the webpage or in the evisa process. (sigh). Thanks for your feedback.

@Nelly *****

Not exactly, but something similar. I wouldn't want to be more specific than that, but it is excluded from taxation.

@Nelly *****

Fortunately for me, the income that I will be bringing in is not taxable in Thailand (specifically excluded in the tax treaty), but that is a very good warning for most people bringing in retirement funds!

@Brandon ***********

We tried the DTV route, but the hospitals/doctors that I spoke to (including the one I consulted in November) all wanted to only set one appointment and then develop a treatment plan. I was under the impression that I would need to have a longer treatment plan to make the DTV fly and didn't want to waste time with getting denied.