The Ulster Medical Society holds virtually no genealogical information on its past and present members.
Neither do we have access to hospital records old or new and cannot assist with such enquiries.
Professor Richard Clarke and the Ulster Historical Foundation have published a magnificent and important book in two volumes entitled A Directory of Ulster Doctors (who qualified before 1901). The ISBN is 978-1-909556-02-7.
We cannot provide lookups for this book and would suggest that you contact the Ulster Historical Foundation's online bookstore Books Ireland for further information.