American Academy of Anti-Aging Medicine
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.
Source: Wikipedia — American Academy of Anti-Aging Medicine (CC BY-SA 4.0)