George Baehr was born in 1887 and graduated from Columbia University's College of Physicians and Surgeons at the age of 21. He began a rotating internship at The Mount Sinai Hospital in 1908, studied pathology and experimental pharmacology in Europe, and then returned to Mount Sinai. He maintained an affiliation with the Hospital until his death in 1978. In his early years, he had an appointment as Associate Pathologist in charge of General Pathology, as well as clinician on the ward staff. He eventually headed the First Medical Service of the Hospital, all while maintaining a busy private practice.
Dr. Baehr made significant research contributions in the areas of collagen disease, hematology, and the adrenal complications of heart disease. He also was a pioneer in public health, organizing the first group health plan in New York, and in 1947 he established the Health Insurance Plan of New York (HIP) at the request of his friend and patient, Mayor Fiorello LaGuardia. Baehr served on many government boards and committees at the local, state, and federal levels, including the New York City Board of Hospitals for 25 years and the State Public Health Council for more than 35 years. In 1945, he was awarded the Mount Sinai Golden Cane and the Surgeon General appointed him to the first NIH Scientific Advisory Board.
Baehr served in both world wars. In World War I, at the age of 30, he was the Commander of Base Hospital No.3, the Mount Sinai based hospital unit that was established in France. During their few months of active service abroad, the unit admitted over 9,000 patients, including over 1,000 a day at times. During World War II, Baehr was Chief Medical Officer of the U.S. Office of Civil Defense.
Baehr retired from active service at Mount Sinai in 1951. After this, he was on Consultant status, and remained actively involved with the Hospital, helping Mount Sinai to establish a medical school in the 1960s and 70s. George Baehr received many honors and awards during his lifetime. He died in 1978 at the age of 91.