Butte-Glenn Medical Society (BGMS) is a membership organization affiliated with the California Medical Association. Butte-Glenn Medical Society's mission is to promote the science and art of medicine, to protect public health, and to promote improvement of the medical profession. BGMS physician members provide care throughout Butte and Glenn counties. According to our files, the colorful history of the Butte-Glenn Medical Society starts with meetings of a dozen physicians in Oroville, the seat of Butte County, in 1857. Stops and starts were common with early medical organizations until the 1900s. Glenn County was organized in 1891 and its first medical association formed shortly thereafter. There were informal alliances between Butte County and Glenn County physicians until their formal union into one society, Butte-Glenn Medical Society, in 1946. Now, physician membership includes both BGMS and CMA dues, providing more resources for physicians, unifying local and state advocacy efforts and strengthening organized medicine.