eHealth Exchange: Federal and Public Health Data Network
eHealth Exchange is the largest health information exchange network in the US, founded in 2007 (originally as the Nationwide Health Information Network). Connects the VA, DoD, IHS, SSA, CDC, state HIEs, and many major health systems.
Why eHealth Exchange is unique
Unlike vendor-led networks (CommonWell) or Epic-anchored exchanges (Carequality), eHealth Exchange has the deepest federal participation. Veterans seen at private health systems can have records flow to VA care teams; SSA disability determinations can pull medical records from participating providers; CDC public health surveillance pulls reportable conditions data.
QHIN designation
eHealth Exchange was among the first organizations designated as a QHIN under TEFCA. Its participation provides the federal interoperability bridge that other QHINs need to exchange with VA, DoD, and other federal participants.
Where Vizier fits
Vizier's EHR connectors include records the customer's EHR pulled from eHealth Exchange — VA-shared records for dual-eligible veterans, public health reporting confirmations, etc. Vizier doesn't need to be an eHE participant; the EHR connector layer handles cross-network data ingest.