Quackwatch is the best source on the web for quackpot medical claims, hands down.
The Quackwatch board is composed of over 60 Medical Doctors (and various other professionals). Dr Barrett (the head of Quackwatch) is retired and has a medical license issued from the Pennsylvania Board of Medicine, classified as "Active – Retired".
Quackwatch is funded completely by donations with a operating budge of about $7,000 a year. Quackwatch has never had a salaried employee.
The American Cancer Society describes their classification of pseudo-scientific health claims as:
Quote
Our gold standard relied on selected unproven cancer treatments identified by experts at http://www.quackwatch.org. The website is maintained by a 36 year old nonprofit organization whose mission is to “combat health related frauds, myths, fads, fallacies, and misconduct.” The group employs a 152 person scientific and technical advisory board composed of academic and private physicians, dentists, mental health advisors, registered dietitians, podiatrists, veterinarians, and other experts whom review health related claims. By using unproven treatments identified by an oversight organization, we capitalized on an existing high quality review.
If you don't think Quackwatch is a good source for information about medical quack-pottery, then I can't imagine what you would consider a good source. It is the gold standard.