21st Medical Group holiday hours Published Dec. 18, 2008 21st Medical Group PETERSON AIR FORCE BASE, Colo. -- The 21st Medical Group will be OPEN on December 22 - 23 and 29 - 30 . The 21st MDG (Main Clinic, Schriever Clinic, Main Pharmacy and BX Pharmacy) will CLOSE AT noon in observance of Christmas Eve and New Year's Eve on Dec. 24 and 31 . The 21st MDG (Main Clinic, Schriever Clinic, Main Pharmacy and BX Pharmacy) will be CLOSED in observance of Christmas Day, New Years Day and AFSPC Family Days on Dec. 25 - 26 and Jan. 1 - 2 . Full clinic and pharmacy services will resume on Jan. 5. The BX Pharmacy will be open for normal operations on Dec. 27 and Jan. 3. When the main clinic is closed: If you are experiencing a Medical Emergency with threat to life, limb, eyesight, please call 911. If you are in need of an urgent care appointment for an acute illness, please call 556-CARE (556-2273).