Dr. Bill Gray has practiced classical homeopathy full time since 1971. He has taught regularly since 1975, mainly in the United States, Norway, Germany, Holland, Greece, Finland and New Zealand. He is a founder of the Hahnemann College of Homeopathy and the International Foundation for Homeopathy.
Dr. Gray was the first non-Greek homeopath to study with George Vithoulkas in Athens. To gain a better knowledge and insight on the subject, he decided to close his practice and go study for two years in Greece. Because of the knowledge he gathered there, he was able to give homeopathy a new life in America.
Dr. Gray helped George Vithoulkas with the writing of his book 'The Science of Homeopathy'.