NAPPP's privacy policy is very simple: 

1) All membership information is held strictly confidential. 
   NAPPP does not sell, rent, or provide any personal data to
   any person or entity without the express written authority
   of the member. 

   Should a member participate in NAPPP's referral service, then 
   the participant should be aware that the data that is obtained
   through a referral search will be public information.