Through your EHR
If you're in the United States and use an interoperable EHR, join Carequality, a network connecting EHRs around the U.S. In the same way you can call a friend who has a different phone carrier, Carequality helps healthcare providers exchange patient information across different EHRs that support national standards.
If you're outside of the United States or are still working on joining Carequality, you can still exchange information with organizations using Epic through existing interoperability standards. Clinicians around the world use Epic to exchange information needed to support patient care.