Be careful with your terminology, read the following which is copied from the Osteopathy Wikipedia article:
Osteopathy - Wikipedia, the free encyclopedia
Uniquely for the United States, osteopathic medicine there constitutes a branch of the medical profession. Practitioners of that branch of medicine are called osteopathic physicians, and are trained and certified to practice the entire scope of the modern medicine. To avoid confusion, the American Osteopathic Association and the American Association of Colleges of Osteopathic Medicine recommend using the terms osteopathic physician (U.S.-trained only) and osteopathic medicine to distinguish individuals trained in osteopathic medicine and the field they practice from osteopaths trained in manual osteopathic treatment, the restricted-scope form of osteopathy found in other countries around the world.[5][6][7][8] In general, osteopaths trained outside of the U.S. are not physicians, are limited in practice to non-invasive manual therapies,[5] and may provide nutritional, postural, and other health advice.
Basically, if they're not a US trained, Osteopathic Physician then they're a quack. Also, notice how their attempt "to avoid confusion" failed miserably.