Hi Loran:
Personally I wholeheartedly agree. Since my fellowship began I have worked on an organization-to-organization view and have compiled it internal to CMS. I will send it to the people that make those kinds of decisions and make a case for disseminating that information.
NPPES does not contain any individual to organization linkage, but this information exists in PECOS as far as I know. This would only cover Medicare participants and not health providers as a whole.
Data consistency across CMS data sets seems to be emerging as a theme from folks I've talked to thus far.
I look forward to more good ideas from you!
Sincerely,
Alan Viars