physical therapist
Treating your ball of foot pain would fall into the careful hands of a chiropractor. A doctor is not required usually, but if so, your chiropractor will send you there if their eventual diagnosis warrants a doctor's consultation.
A Doctor Who treats children is called a paediatrician
Chiropractors don't take X-rays at all anyway; you have to see a radiologist for that. A chiropractor diagnoses by direct contact, and treats with the same.
Dermatologist treats that condition
An oncologist treats people with cancer.
Cut the gordian knot: rewrite the sentence: The good doctor treats patients with compassion or treats patients compassionately.
I think its an orthapeadic doctor
Foot doctor
The Dermatologist (skin doctor)
Dermatologist treats your skin diseases.
A gastroenterologist treats stomach pain.
Psychiatrist