Enclarity is definitely legit and, as another poster mentioned, their business is to make money off of correct provider info. The ongoing issue with using CAQH or other credentialing info though is that it's not updated enough. It's pretty uncommon for many providers to notify their credentialing organization when moving/changing practice addresses, phone numbers or office hours which is what creates the market for Enclarity. So it might be correct every 2-3 years...but that's it. Plus there is a huge disconnect between an insurance companies credentialing staff and, say, their directory or consumer facing group. They often don't share too much with each other...in our experience.

Our organization helps a few large insurance companies produce provider directories by verifying and standardizing the info because of what I mention above. NPI was supposed to help but hardly anyone updates their NPI records (plus you can only have 1 office address, etc.).

Faxing is a little old school but I'd love to find a way to resolve the outdated info.