What kind of scientist studies feet?

a pedientist?

pedologist?

A feet scientist!

Actually, a podiatrist, I think! Don’t know any of the rest.

Podiatrists; http://www.footpain.org/

Orthopedic surgeons who specialize in feet and ankles

Physical Therapists
Acupuncturists
Rheumatologists
Pain Management experts

The Occupational Outlook Handbook has all the information you are asking about, for virtually any career option. You can even search by interest, by typing “foot” or “feet” into the search box.

A kinky scientist?

@ratboy: Wait until you age and your feet start to ache, no matter what shoes you wear. You’ll be grateful for the foot people then, I promise.