Corporate Offices & Locations

In a continuing effort to provide a safe work environment for our associates, we will no longer allow walk-in support for customers at any of our office locations. This includes our district offices. This will be effective Monday, March 16.

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Canton Tower
1501 South Clinton Street
Baltimore, MD 21224
Corporate Switchboard: 410-581-3000

Union Center Plaza
840 First Street, NE
Washington, D.C. 20065

Columbia Gateway

Conference Center
Medical Management Gateway
6731 Columbia Gateway
Columbia, MD 21046


National Accounts Service Company (NASCO)
10 Commerce Drive
Cumberland, MD 21502


CareFirst Administrators
Suite 200
3060 Williams Drive
Fairfax, VA 22030

Owings Mills

General Administrative Offices
10455 and 10453 Mill Run Circle
Owings Mills, MD 21117

Owings Mills

Red Run Service Center
10802 Red Run Boulevard
Owings Mills, MD 21117


FEP Operations Center
1280 Maryland Avenue, SW
Washington, D.C. 20024


10780 Parkridge Boulevard, Suite 300
Reston, VA 20191

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To contact Member Services use the telephone number on your Member ID card or visit our Contact Us page.