Great question, Yaron. Anyone that joins Medpedia claiming to be a physician or PhD is personally vetted by one of the community managers here at Medpedia (myself included) before being approved as an Editor.

A Ph.D.'s faculty listings and publications serve as initial identification and these are cross-checked against the information they have listed. In all cases, academic, practice and research information is also carefully investigated. Before a physician can be approved, his or her medical license must be found and double-checked against various data points provided by the applicant.

If any doubt remains, a phone conversation and references provide the final verification. This is why we require PhDs and medical professionals to fill out many detailed fields (including phone number) when registering on Medpedia.

You can learn more about the process here: http://www.medpedia.com/faq#what_is_an_editor_and_who_can_be_one

That being said, keep in mind that the content on or accessible through Medpedia is for informational purposes only. Medpedia is not a substitute for professional advice or expert medical services from a qualified health professional, so you should always ask your physician directly if you have specific medical questions. (You can read more about it here: http://www.medpedia.com/terms)