The American Academy of Anti-Aging Medicine (A4M) is a United States 501(c)(3) nonprofit organization that promotes the field of anti-aging medicine, and the organization trains and certifies physicians in this specialty. As of 2011, approximately 26,000 practitioners had been given A4M certificates. The field of anti-aging medicine is not recognized by established medical organizations, such as the American Board of Medical Specialties (ABMS) and the American Medical Association (AMA). The Academy's activities include lobbying and public relations. The A4M was founded in 1993 by osteopathic physicians Robert M. Goldman and Ronald Klatz, and as of 2013 claimed 26,000 members from 120 countries.