I knew a guy who was a medic, retired at 20 yrs (with retirment) then got job in private sector as a PA physician assistant.
Yeah, he might have had to take a few courses then pass the PA exam.
In MA, a combat medic would need to pass the paramedic test and do hospital rotations to be able to ride on an ambulance.
Becoming a PA would require a three year program AFTER his bachelors.
There are not a lot of “credit for experience” in those roles.