The DocGraph referral graph encoded using the National Provider Identifier (NPI).
The core NPI database is already open data, including location and type of doctor. But most of the data is held at the state level by the various medical boards.
So we crowdfunded the purchase of this data, which makes the referral graph far deeper. As a result it is possible to use the graph to analyize how doctor come to trust and work with one another.
We cannot be sure, but we think this is the largest open data set, that uses real names that details social relationships. Of course Facebook et al have much larger social graphs, but they only release a sliver at a time. If you are a data scientist interested in graph big data, this is a pretty deep well.
Fred Trotter is the leading consultant and advocate for Free/Libre and Open Source (FOSS) Health Software. In recognition of his role within the Open Source Health Informatics community, Trotter was the only Open Source representative invited by the NCVHS to testify on the definition of ‘meaningful use’.
Trotter has contributed code to FreeMed, OpenEMR is the current project manager of MirrorMed and the original author of FreeB, the worlds first GPL medical billing engine. In 2004 Fred Trotter received the LinuxMedNews achievement award for work on FreeB. Fred Trotter manages the Open Source EHR review project with the American Medical Informatics Association (AMIA), Open Source Working Group (oswg). Fred is also a member of WorldVistA.
Fred Trotter is a recognized expert in Free and Open Source medical software and security systems. He has spoken on those subjects at the SCALE DOHCS conference, Retail Healthcare conference, LinuxWorld, and DefCon. He has been quoted in multiple articles on Health Information Technology in several print and online journals, including WIRED, zdnet, Government Health IT, Modern Healthcare Online, Linux Journal, Free Software Magazine and LinuxMedNews.
Trotter has a B.S in Computer Science, a B.A in psychology and a B.A in philosophy from Trinity University. Trotter minored in Business Administration, Cognitive Science, and Management Information Systems. Before working directly on health software, Trotter passed the CISSP certification and consulted for VeriSign on HIPAA security for major hospitals and health institutions. Trotter was originally trained on information security at the Air Force Information Warfare Center.
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