Podiatrists are trained extensively in conditions of the foot and ankle. Some MD’s are also trained in these conditions, but if you do decide to seek the attention of an MD, ensure that they are an orthopedic doctor specializing in conditions of the foot and ankle.  Both DPM’s and MD’s complete medical school and residency, but an MD degree in and of itself is generalized, so it matters more what type of residency training they acquired.