You can complete the TRICARE Prime Enrollment Form on line at:http://www.tricare.mil/Welcome/Enrollment/TP.aspxYou can update DEERS calling 1-800-538-9552 or by visiting:https://www.dmdc.osd.mil/appj/address/beneficiary/consent?continueToUrl=%2Fappj%2Faddre ss%2Fbeneficiary%2Finit.do...