This case study examines the collaboration between the Social Security Administration (SSA) and MedVirginia to use the Nationwide Health Information Network (NHIN) to securely exchange patient health information. Some key challenges included achieving interoperability between MedVirginia's clinical systems and gateway, and identifying a standard to represent SSA's authorization form. However, SSA and MedVirginia went live on February 28, 2009, making it the first production exchange of health information across the NHIN. The case study identifies technical, organizational, and governance considerations from interviews with those involved.