Francis' initial career was in the youth and social care services of the Jewish community, and as a university teacher of social sciences. On becoming a successful patient of homeopathy, he retrained and, in his own words, “started my life again”.
Francis has been in private practice since 1984, and part time in NHS primary care from 1990-2003. He is a Fellow of the Society of Homeopaths, former editor of the journal The Homeopath for 10 years, and currently Board member. He also taught worldwide and has written many articles, a research report and 2 books, and helped create specialist software for homeopaths. Francis describes his 'incurable disease' as collecting books on homeopathy, with a library comprising about 11,500 volumes and a museum collection of artefacts from the history of homeopathy.