what kind of doctor you are?
doctor have lots of skills sets, and you are looking for work permit or PR?
please explain completely with your info, educational info and experience info.
read more on NOC list here :
http://www.cic.gc.ca/english/immigrate/skilled/apply-who-instructions.asp
◦3111 Specialist Physicians
◦3112 General Practitioners and Family Physicians
◦3113 Dentists
◦3142 Physiotherapists
◦3215 Medical Radiation Technologists
◦3222 Dental Hygienists & Dental Therapists
◦4151 Psychologists
stil NOC's available upto new NOC list will announce.
OMM