I would suggest maybe emailing Dr. Levitin or one of the other doctors on this site. (go to Ask the Experts) and maybe he will be able to give you some guidance or a suggestion of what type of specialist would be best, due to the location of his hemangioma. And you could email Corinne (the VBF director of Family Services) and she will have some ideas too.
The poor baby! I hope he is feeling better soon! Let us know how things go.