470th ABS Medical Services U.S. Medical ClinicThe appointment line opens at 8 a.m. and can be reached at 02451-99-3200. U.S. Dental Clinic Hours of Operation: Monday through Thursday 8 a.m. - 4 p.m., and Friday 8 a.m. - 2 p.m. The dental clinic closes at noon the third Wednesday of every month for training. Appointment Line: 02451-99-3535 Patient Liaison services If you would like a tri-lingual patient liaison to help you during your medical appointment, overnight stay or during an emergency, call the patient liaison officer. They are available 8 a.m. - 5 p.m. Mon through Fri, and 9 a.m. - 3 p.m. Sat through Sun. Call 02451-99-3423 during the duty day, or call 0172-252-3648 after hours. Pharmacy Order Refills: DSN 452-3301 or 06565-61-3301. Online Appointments Visit http://www.tricareonline.com to book appointments 24/7.