Have Questions About Part D Plans?

Please note that standard e-mail is not secure. Since information about your drugs is confidential, we do not currently provide customer service via e-mail.

For Questions About: Contact Us At: Mailing Address:
Buying a Medi-CareFirst plan Prospective Customer Service
888-784-0790
888-784-0868 (TTY/TDD)
8 a.m. – 8 p.m. EST,
7 days a week		 Medicare Prescription Drug Plan Enrollment Center
c/o CGI, Inc.
P.O. Box 2668
Ft. Worth, TX 76113
Request an Information Kit on Medi-CareFirst plans E-Mail Your Request Medi-CareFirst Rx Response Team
10455 Mill Run Circle
OM1-415
Owings Mills, MD 21117
  • Application Status
  • Billing
  • Coordination of Benefits (COB) Survey
  • Change your plan
  • Eligibility
  • Enrollment
  • New Card
  • Obtaining information in other languages
 Membership Customer Service
1-888-857-6118
1-800-855-2880 (TTY)
Hours are (October 15 to February 14): 8 a.m. to 8 p.m., 7 days a week; (February 15 to October 14): 8 a.m. to 8 p.m., Monday through Saturday.		 Medicare Prescription Drug Plan Enrollment Center
c/o CGI Technologies & Solutions
P.O. Box 2668
Fort Worth, TX 76113
  • Benefits
  • Claims (including appeals and exceptions)
  • Complaints, Appeals or Grievances
  • Finding a Participating Pharmacy
  • Medication Therapy Management
  • Out-of-Pocket Costs
  • Prior Authorizations
  • Quantity Limits
 Claims Customer Service
1-800-693-1434
1-800-693-0765 (TTY/TDD)
24 hours a day, 7 days a week		 Medicare Prescription Drug Plan Claims Center
Argus Health Systems
Dept.#303
P.O. Box 419019
Kansas City, MO 64141
Prior Authorization (physicians only) Argus Health Systems
1-800-314-2872
Fax: 1-800-315-4025
Fraud (or suspected Fraud) 1-800-336-4522
711 (TTY/TDD Relay Service)
M-F: 9 a.m. - 4 p.m. EST
E-mail the Special Investigations Unit		 Medi-CareFirst
Special Investigations Unit
10455 Mill Run Circle
Owings Mills, MD 21117
Web Site Problems E-mail the Web Team
1-800-314-2872
Fax: 1-800-315-4025		 Medi-CareFirst Web Team
OM1-8/Corporate Communications
10455 Mill Run Circle
Owings Mills, MD 21117