Unfortunately, you would have to be extremely lucky to find a doctor with even a moderate knowledge of the B12 issue. And the odds of finding someone who would have the vaguest clue as to how to procede when the patient has supplemented, probably a million to one.

If you want someone who should understand blood otherwise, a hematologist would be the one. But don't even expect all of those to understand B12, so you will probably just need to keep it up forever, while looking into other things. There are other types of anemia, so maybe it would be a good idea to see one.

There is no such thing as too much methylcobalamin, so making sure you have plenty is all you have to worry about regarding that.

rose