The health unit of Fiserv Inc. says it has a multiyear agreement with Aetna Inc. to give Fiserv third-party administrators more access to Aetna’s provider network and Aetna’s stop-loss services.[@@]

Wausau Benefits, Milwaukee, a Fiserv TPA, joined the Aetna Signature Administrators program in 2004. Aetna is using the program to reach out to self-insured employers, which often use TPAs to manage their employee benefit plans.