Did you see a Taiwanese cockroach foam at the mouth and refuse to drink water; is that what caused you concern? Oh, I did not read your post carefully, you are elsewhere getting ready to move to Taiwan…on a serious note, you might want to report your doctor to the Board of Medical Quality Assurance (or whatever they call it where you live).
Your doctor is either trying to overbill your insurance company, bilk you personally out of some money or they are trying to win a bet with one of their fellow doctors that they can b.s. a patient into believing that roachs can have rabies. Rabies is a disease carried only by mammals, not insects.
Official Disclaimer: Attorney Brian L. Kennedy is not a medical doctor but as a trial attorney he does have the ability to detect b.s. at a range of up to 100 meters away.
As to what shots to get, take the advice of the other posters.
take care,
Brian Juris Docktor