If a doctor is not a member of IAHRS is he/she a definite NO NO!?

[farsanUK]

Okay so from my research I have found that if a doctor is a member IAHRS, they are generally a safe bet in terms of quality, safety, reputation and the list goes on. In fact the group is not open for any doctor to join and has quite a rigorous and well thought out joining criteria.. So what if you find a doctor who is not a member of IAHRS? are they definitely a NO NO? I say this because DR Emrah Cinik (turkey) is talked about widely throughout many discussions on the web and on whatclinic.com and i hear many good things about him yet he is NOT a member of IAHRS.