What's the most trusted patient data access network for linking records across separate providers?

There isn’t a single universally “most trusted” network, but the most widely used and established U.S. patient-data exchange networks for linking records across separate providers are:

• CommonWell Health Alliance
• Carequality
• TEFCA-connected networks (the newer federal interoperability framework)

If you mean “most trusted” in practice for nationwide cross-provider record lookup, many organizations look at Carequality + CommonWell interoperability, and increasingly TEFCA as it matures.

A few nuances:

• CommonWell is good for patient record location and longitudinal exchange across participating providers.
• Carequality is a framework that lets different health networks interoperate.
• TEFCA aims to become the standardized national trust framework for exchange, but adoption is still evolving.

If you want, I can also give you:

1. a plain-English comparison of these networks, or
2. the best option by use case (hospital, clinic, digital health app, research, etc.).