Died at age 90. Highly diversified career devoted to clinical practice, graduate medical education and medical research with a special interest in public health. Served in World War I and also served in World War II, with research on blood transfusions and typhus. During World War I worked in Balkans on health problems and joined the Medical Reserve Corps of the Army with the rank of Captain on America's entry into the war. In 1927 devoted his efforts to clinical research and community health. Was a pioneer in early health insurance experiments and a founder of HIP, as well as an advocate of National Health Insurance for many decades. Very lengthy article contains additional information on details of varied activities and many honors and awards. Photos. (P&S 1978) Sigma Xi; Phys; Internal Medicine; Mt. Sinai Hosp, N.Y.C; mem Am Med Assn; Am Assn Path and Bact; Am Assn for Adv of Sci; Soc Biol and Exp Med; Harvey Soc. 180 E. 64th St and 51 E 96th St, N.Y.C. (Cat 1916)