Your doctor should be able to hand over you to a know onions and experienced acupuncturist. You can also checkup at the national acupuncture runnings such as the National Certification Commission for Acupuncture and Oriental Medicine (NCCAOM).
The best option is to find a person who has proper medical cultivation, as he is likely to better asses your medical reputation and required treatment. After you have plant an acupuncturist, ask for references from previous cases.