The American Psychological Association (APA), located in Washington, D.C., is the largest scientific and professional organization representing psychology in the United States. Its membership includes more than 150,000 researchers, educators, clinicians, consultants and students. The organization works to advance psychology as a science and profession and as a means of promoting health, education and human welfare.

National Medical Association's mission is to advance the art and science of medicine for people of African descent through education, advocacy and health policy to promote health and wellness, eliminate health disparities and sustain physician viability.

National Association of Mental Illness is the nation's largest grassroots organization for people with mental illness and their families. Founded in 1979, NAMI has affiliates in every state and in more than 1,100 local communities across the country.

American Association for Geriatric Psychiatry - This organizations mission is to enhance the knowledge base and standard of practice in geriatric psychiatry through education and research, and to advocate for meeting the mental health needs of older Americans.

American Academy of Addiction Psychiatry - The AAAP is an international professional membership organization founded in 1985 with approximately 1,000 members in the United States and around the world. The membership consists of psychiatrists who work with addiction in their practices, faculty at various academic institutions, nonpsychiatrist professionals who are making a contribution to the field of addiction psychiatry, residents and medical students.