Fort Sill, OK - Hospital and Medical Treatment Facilities

    TRICARE Service Center


    TRICARE Service Center is located at Building 4301 Thomas Road and McKee Street, Fort Sill, OK 73503. TRICARE Service Center can be reached by their main phone number at (800) 444-5445. Alternatively, you can reach TRICARE Service Center by phone at (580) 558-2000. The listed DSN line is 312-495-2800.