Leah Miriam Hiller was born on June 17, 1930, to Sarah Hiller in
Milwaukee,
Wisconsin. She had three sisters. Lowenstein completed her B.S. at the
University of Wisconsin. As a semiprofessional cellist, Lowenstein completed most of medical school at the
University of Wisconsin School of Medicine and Public Health on a music scholarship. She was awarded the funds for four years and it went unnoticed by the university when she enrolled in medical school during her third year. She earned extra money by playing in a string
trio. Completing her doctor of medicine in 1954, she was one of only three women in her medical class. Lowenstein was a member of
Phi Beta Kappa and
Alpha Omega Alpha. She completed her
internship at the
UW Health University Hospital in
Madison, Wisconsin. Lowenstein was a research associate in the department of anatomy at the
University of Oxford for three years, where she earned a
DPhil at
Somerville College in 1958. She completed a
residency at
Beth Israel Deaconess Medical Center in 1959. In 1960, she completed a fellowship in
renal and
metabolic diseases at the
Veterans Administration Hospital at Tufts. == Career ==