A protocols test you can walk in with NREMT-whatever and take for your corresponding qualification level, though. Every department, anywhere, worth a shit, has a protocols test for the practitioners in that area.
Hell, I know we specifically had them for our Ranger Medics, and while I wasn't a SOCM grad I still went through it as an Infantryman turned "homeschooled" BN level medic. I did it 2 weeks prior to all the MOSQ'ed medics, then did all the logistics in support of them getting theirs done.. both written and practicals.
You can go to a college or school, spend 2 years in school doing all that jazz and walk out with your national registry paramedic certification. No "work" involved. Will you have some ride experience as part of the program? It's a requirement to do X amount of hours both ER/Ambulance, increasing, for each level of qualification. Is that work? no, because you're a student in the course and not being paid.
The good thing about our EMT course is that while the NREMT "crap" the EMS trained us on, at the same time we were using a large portion of what WE normally would be using for casualty care. We didn't have truck bags, we had aidbags packed to the RSOP for what medics carried and also had company/Bn senior medics do continued training with us expanding our scope/knowledge with how we did things tactically vs what we got taught for ambulance/er operations due to NREMT requirements.