Med Group holiday closures Published Dec. 22, 2008 CANNON AIR FORCE BASE, N.M. -- The 27th Special Operations Medical Group will close at 1 p.m. on Dec. 24 and Dec. 31. It will be closed on Dec. 25 and 26 as well as Jan. 1 and 2. This includes the pharmacy and all ancillary services. For care during the above times, call 784-APPT (2778) for an on-call provider.