Physician. Vasen was the first Jewish woman doctor in Los Angeles and the first superintendent and resident doctor of Kaspare Cohn Hospital, which eventually became Cedars-Sinai Medical Center. She attended the University of Iowa Medical School, the first co-educational medical school in the country, specializing in obstetrics and gynecology. In 1898, she moved to Philadelphia and served as a superintendent and obstetrician for the Jewish Maternity Home. In 1904, she moved to Los Angeles and the following year she became associated with the Kaspare Cohn Hospital, which had been founded in 1902 to care for tuberculosis patients, and was a resident supervisor there from 1906 to 1910 while maintaining her own practice in downtown Los Angeles where she offered her services "gratis in maternity cases to the poor who are recommended by the Hebrew Benevolent Society". Before the end of 1911, she met a retired businessman, Saul Frank, and after a whirlwind courtship, the couple were married on January 25, 1912. Shortly thereafter, she made the decision to give up her private practice and in 1915, they settled in Glendale, where she took an interest in the community and helped organize the first religious school for the city's Jewish children. In 1924, Saul suffered a fatal heart attack and for the next twenty years the widowed Dr. Vasen lived alone until her death. Her passing was reported in the Glendale newspaper in an obituary that read: "Thus passed from the scene Los Angeles’ first Jewish woman physician – one of the first professionals engaged by the Jewish community and paid from community funds. These many years later it is a privilege to place her in her rightful niche in Los Angeles history, as a pioneer woman in the medical profession of the city, a participant in the beginning years of one of the country’s great medical centers, a contributor to Jewish welfare in the East and in the West, a woman of independence far ahead of her times, a devoted wife, a kind, generous, and modest woman".