Based on what you have said I would stay far, far away from that podiatrist.
I too have had problems with neuroma. I came across a podiatrist at the expo for the L.A. Marathon who talked me into orthotics after talking with him for over an hour. It seems as though my neuroma was caused/aggravated by shoes that were too narrow. This included running and riding shoes. I did buy orthodics from him for my running shoes and they really helped esp. on my long runs of over two hours. Apparently the higher arch along with a small pad located under the ball of the foot in the orthodic causes the bones in your foot to spread slightly so the nerve doesn’t get as aggravated. Additionally, I increased the width of my shoes all the way out to 4E in all of my shoes. I ended up with Carnacs in both my road and mountain bike shoes and have been very happy.
Maybe you could try going to a running specialty store and asking if they know of a good foot doc.