APA represents 39,200 psychiatrists worldwide. A decision to retweet or share content does not represent an endorsement of non-APA material. APA represents 38,900 psychiatrists worldwide. A decision to share content does not represent an endorsement of non-APA material. We have merged! You may find our current listing under American Psychiatric Foundation, EIN: 13-0433740. The mission of the American Psychiatric Foundation is to improve the lives of patients, families and the community through public education, advocacy, and research that advances the understanding, prevention and treatment of mental disorders.