alter TOP Regional Call Center How Do I...?


Toll-free lines may not be available for all mobile phone carriers overseas.

Customer Service Phone Numbers

International SOS will provide 24/7 Customer Service and Support for TRICARE Overseas Beneficiary Enrollment and Provider Education/Assistance. Please use the phone numbers listed below if you require assistance with this information.

Toll free is not an option in every location. If a toll free number is not listed below, please use our regional direct customer service number. If toll free is available and there is an access number listed below, please dial the access number prior to dialing the toll free number.

Customer Service Regional Direct

Customer Service Toll Free

Customer Service Toll Free Access Number*

Medical Assistance

International SOS provides 24/7 support for TRICARE Overseas Beneficiaries, when they need urgent or emergent care or request medical assistance.

Medical Assistance Regional Direct

Medical Assistance Toll Free

Not Available

Medical Assistance Toll Free Access Number

Assistance Center Fax Number

Claims Submission, Tracking & Payment

International SOS provides 24/7 Claims Submission, Tracking and Payment support for TRICARE Overseas Beneficiaries and Providers. Use the contact information listed below for all Claims-related inquiries.

Claims Processing Mailing Address for Active Duty Service Members


Claims Processing Mailing Address for All Other Beneficiaries


Claims Fax Number

Enrollment & Beneficiary Education

TRICARE Overseas Beneficiaries can use the mailing address listed below for all TRICARE Overseas Program (TOP) correspondence.

Mailing Address for TRR, TRS, TYA Select and TRICARE Select Overseas Enrollments


Mailing Address for TRICARE Prime Overseas, TRICARE Prime Remote Overseas and TYA Prime Enrollments


Enrollment Fax

+ 1-215-773-2740

Provider Assistance

TRICARE Overseas Providers can use the following email address for contacting International SOS' TOP Regional Assistance Network offices.

Global Assistance Network Team Email Address

Grievances, Complaints & Compliments

TRICARE Overseas Beneficiaries and Providers can use the mailing address listed below to submit grievances, complaints or compliments regarding any perceived TOP health care delivery failures or concerns.