The Japan Medical Association (Japanese: 日本医師会, Hepburn: Nihon Ishi Kai) (also known as JMA or Nichii (日医)), is the largest professional association of licensed physicians in Japan. The JMA has been a member of the World Medical Association since 1951 and participates at all levels of the WMA. National headquarters are located in Honkomagome, Bunkyō, Tokyo, Japan, supplemented by prefectural branch offices and member associations in local communities.