The National Physicians Alliance (NPA) was a 501(c)(3) national, multi-specialty medical organization founded in 2005. The organization's mission statement was: "The National Physicians Alliance creates research and education programs that promote health and foster active engagement of physicians with their communities to achieve high quality, affordable health care for all. The NPA offers a professional home to physicians across medical specialties who share a commitment to professional integrity and health justice." In 2019, they merged with Doctors for America.

The American Medical Student Association (AMSA), founded in 1950 and based in Washington, D.C., is an independent association of physicians-in-training in the United States. AMSA is a student-governed national organization. They have a membership of 68,000 medical students, premedical students, interns, medical residents and practicing physicians across the country.