Washington, D.C.

Washington, D.C.

San Diego, CA

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CoreSource

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CoreSource, a Trustmark Company, is one of the nation’s largest third party administrators. We deliver local service backed by national resources, provided with a personal touch. Our knowledge is healthcare benefit plans that fulfill the quality and flexibility of employees while meeting the company’s cost management goals.

Address: 400 Field Drive
Lake Forest, IL60045-4809 

Phone: 847-615-1500

Web Page: www.coresource.com