Many medical doctors (M.D.) and osteopathic doctors (D.O.) study homeopathy as a postgraduate specialty, much the same as, for example, neurology or orthopedics. A second group of doctors includes naturopathic physicians (N.D.) who study homeopathy as part of their naturopathic school training. Both of these groups have board certification: the Diplomate in Homeotherapeutics (DHt) for MDs and DOs, and the Diplomate of the Homeopathic Academy of Naturopathic Physicians (DHANP) for naturopathic physicians.

The Certified in Classical Homeopathy (CCH) designation is available to homeopaths of all professions. Homeopathic practitioners also include chiropractors, veterinarians, dentists, nurse practitioners, physician assistants, acupuncturists, and certified nurse midwives. Practitioners' levels of competence in homeopathy often have little to do with their type of licensure. The National Board of Homeopathic Examiners certifies 23 North American sites for training and postgraduate education.

There are many training programs and courses in homeopathy in both the U.S. and abroad; however, no diploma or certificate from any school or program is recognized as a license to practice homeopathy in the US.

The Regulation of Homeopathic Practitioners

Practitioners of classical Homeopathy are not regulated by state but are regulated by national certification or diplomate status. Homeopathy is practiced by a wide variety of health-care practitioners, including medical doctors, osteopaths, naturopathic physicians, nurse practitioners, physician assistants, dentists, veterinarians, chiropractors, acupuncturists, nurse midwives, and podiatrists, as well as by professional homeopaths, who practice only homeopathy and are unlicensed in any other discipline.