Contact Information

E-mail
Online Customer Service Inquiry Form

Telephone
International Toll-Free
24 hours a day, 7 days a week
(AT&T USADirect Access Number*) plus
866-721-8737

*For assistance with international dialing instructions, please visit www.usa.att.com/traveler/index.jsp

Mail
Written Inquiries
Delta Dental of California
Federal Services
PO Box 537008
Sacramento, CA  95853-7008
United States of America

Claims submission
Delta Dental of California
Federal Services
PO Box 537006
Sacramento, CA 95853-7007
United States of America

1st level appeals
Delta Dental of California
Federal Services
PO Box 537015
Sacramento, CA 95853-7015
United States of America

Frequently Asked Questions

Enhanced-Overseas FAQs
General TRDP FAQs
** Prospective Enrollees
** Current Enrollees

Materials

Enhanced Program Benefit Booklet (PDF)
Enhanced-Overseas Supplement (PDF)
Enhanced-Overseas Claim Form (PDF)

Dentist Referral Resources

Department of Defense
Host Nation Provider List

HNPL-Europe (PDF)
HNPL-Latin America & Canada (PDF)
HNPL-Pacific (PDF)

I-SOS, Inc. 24-Hour Referral Service*

From inside the U.S. –
Toll-free: 800-523-6586

From outside the U.S. –
Collect: 215-942-8226

*English-speaking I-SOS operators are available 24 hours a day, seven days a week to help you find an I-SOS dentist. When you call I-SOS from outside the U.S., you must first dial the international dialing code from the country in which you are located and then the country code for the U.S. (“1”). Be sure to tell the I-SOS operator that Delta Dental is your dental coverage carrier and that you are calling collect, if applicable, and specify the city and country in which you are looking for a dentist.