Corporate Headquarters
10455 & 10453 Mill Run Circle
Owings Mills, MD 21117
(410) 581-3000

Annapolis District Office
125 West Street, Suite 303
Annapolis, MD 21401
(410) 268-6488

Baltimore Office
100 South Charles Street
Tower 2
Baltimore, MD 21201
(410) 528-7000

Columbia Medical Plan
Two Knoll North Drive
Columbia, MD 21045
(410) 997-8500

Cumberland District Office
119 Baltimore Street
Cumberland, MD 21502
(301) 724-1313

Delmarva Health Plan
301 Bay Street, Suite 401
Easton, MD 21601
(410) 822-7223

Easton District Office
301 Bay Street, Suite 401
Easton, MD 21601
(410) 822-1850
Located within the Delmarva Health Plan

Frederick District Office
110 Baughman's Lane
Frederick, MD 21702
(301) 663-3138
Located within the Frederick Regional
Medical Center

Hagerstown District Office
125 West Washington Street
Hagerstown, MD 21740
(301) 733-5995

National Accounts
Operations Center
7 Commerce Drive
Cumberland, MD 21502
(800) 628-8544

Salisbury District Office
224 Philip Morris Drive, Suite 106
Salisbury, MD 21804
(410) 742-3274

Timonium Office
1946 Greenspring Drive
Timonium, MD 21093
Medicare Part A
(410) 252-5310 · (800) 655-1636
Federal Employee Program
(410) 581-3455 · (800) 638-6756

Willse & Associates, Inc.
100 South Charles Street
Baltimore, MD 21201
(410) 547-0454