It is little known that in the early days, many Jewish people converted to Christian Science. You can read an article about them here
Even less well known is that Rabbi Alfred G Moses did not convert but instead received permission from Mary Baker Eddy to establish the society of Jewish Science and wrote the text book “Jewish Science, Divine Healing in Judaism” (You can download it free) which became more or less the Jewish alternative to CS, although it seems to have evolved a little.
As time went on, the society developed and was led by Rabbi Morris Lichtenstein, who wrote “Jewish Science and Health: The text book of Jewish Science”. (you can order this book from their sites below)