First off, let me congratulate you on supporting your son in such a positive manner! It means so much to us to have supportive and understanding parents/famiy/friends.
I have not had top surgery yet and do not live in your area. I have been researching though and have not come across that surgeon's name in the hundreds of discussions I have read. I checked out Transbucket to see if anyone had posted their results. There are 3, 1 recent and 2 quite old. The recent result, unfortunately does not show a good result. You do have to understand though that sometimes bad results are not an indication of the surgeons skill level. I urge you to check out that website, as a heads up it does contain pictures that are clinical but definitely not suitable for all viewers.
During my research I've noticed a couple of surgeons in Florida who are very popular with the community. They are Garramone and Sassani. Again, I urge you to do research. I've found that FTM top surgery as the search will bring you lots of results. You can also refine it by adding your location.
Good luck to you and your son!
Perry