 As the all-male North Carolina Medical Society would only grant her honorary membership, Dimock rejoined the New England Hospital for Women and Children, where she was appointed resident physician on August 20, 1872.She greatly improved and increased the service of the hospital, in the course of which she opened the first graded school of nursing in the United States on September 1, 1872.She worked as a surgeon, developed a private practice in obstetrics and gynecology and performed a number of important surgical operations, a number of which were mentioned in the medical journals of the day.