I had my left breast removed 16 years ago. 

At the time of breast reconstruction the nipple of my surviving breast was surgically realigned thus numbing any sensation on the nipple.  

For the past 8 weeks the nipple has become hypersensitive -- it now also includes the aureola as well.   I saw a surgeon who had me undergo a mammogram and an ultra sound of my breast --- both came back fine.

The nipple looks fine but the hypersensitivity at times becomes painful.   I'm concerned that I may have Paget's disease of the Nipple --- even though no tumor was found ---- what type of Doctor should I see with my concerns so that I can get a biopsy.   The surgeon I saw was condescending and said no one could tell me why this is happening.