Beneficiary Counseling Assistance Coordinators TRICARE Service Center is located at 3259 Catlin Avenue, Quantico, VA 22134. Beneficiary Counseling Assistance Coordinators TRICARE Service Center can be reached by their main phone number at (877) 874-2273. Alternatively, you can reach Beneficiary Counseling Assistance Coordinators TRICARE Service Center by phone at (703) 784-1538. The listed DSN line is 312-278-1538.