I'm currently studying podiatry and am intrestead in woking for doctors without borders in the future.

I saw a list of various different medical professionals, but not podiatry is there ever a need for podiatrist? 

Another question I have is regarding applying as a surgeon, I saw required is a valid degree or license, would an individual with a Doctor of Podiatric Medicine (DPM) degree with completed residency in surgery be acceptable? Let me know, thank you!