Late-Qīng-born Republican-period Chinese medical educator and the founder of the Yuányùndòng 圓運動 (circular-motion) school of modern Chinese medicine. Born in Yúnnán (originally Péng Chéngzì 彭承祉), he taught successively at the Taiyuan Shanxi Medical College, the Beiping (Beijing) Imperial Medical College, the Chengdu and Chongqing TCM schools, the Nanjing Central National Medical College Special Research Class, and the Kunming TCM school over a 25-year career (c. 1921–1948). His magnum opus KR3er116 Yuányùndòng de gǔ Zhōngyī xué 圓運動的古中醫學 (1921–1947, with the final form prefaced at age 74 suì at Bóbái 博白, Guǎngxī) is one of the most ambitious 20th-c. Chinese-medical doctrinal systematisations: it reorganises Chinese medical theory around the great descend-rise-float-submerge solar-energy cycle and the closed-loop twelve-channel motion, claiming to restore an “ancient Chinese medicine” (gǔ Zhōngyī xué) lost since Wáng Shūhé’s misreading of the Nèijīng. Péng died at Kunming in 1949. The work was suppressed during the early PRC era and rediscovered by the post-1990s Sìchuān Huǒshén pài revival movement (Lǐ Kě 李可 and associates), becoming a foundational text of the contemporary classical-medical revival.