I do not have a link to such a registry....we do have a list of Drs members here have added to the list....I know there are many Drs that claim they are Chiari specialists, but do not do research or look for more issues that could be going/coming along with Chiari.
I have not had time to repost a new thread on the Drs list we compiled here....but if you tell me the sate I may be able to post that here....or if out of US, let me know where and I can add that link.
Keep in mind this list may contain Drs that are not true Chiari specialists the list is a starting place to begin researching Drs and was compiled by the members here of Drs that they have been to, treated by and liked.