The letters "DPM" after a doctor's name stand for "Doctor of Podiatric Medicine." These doctors are called podiatrists, and they diagnose and treat disorders of the feet and ankles. They are also called podiatric surgeons.
The education of a podiatrist is very much like that of any doctor. A candidate completes a bachelor's degree, four more years of education in a podiatric medical school and another three years of residency. Sub-specialties exist within the field, such as pediatric podiatry, sports medicine and diabetic foot care. Once in practice, a podiatrist runs medical tests, prescribes medication and performs surgery on parts of the feet and ankles.