377th Healthcare Operations Squadron holds change of command Published July 12, 2023 By Airman 1st Class Spencer Kanar 377th Air Base Wing Public Affairs KIRTLAND AIR FORCE BASE, N.M. -- Col. Nisa Pistone (left), 377th Medical Group commander, passes the guidon to Lt. Col. Christopher McMillian (right), 377th Healthcare Operations Squadron (HCOS) incoming commander, during a change of command ceremony at the New Mexico Veterans Memorial in Albuquerque, New Mexico, July 12, 2023. A ceremony was held for the 377th HCOS change of command where Lt. Col. Sarah Whitson, 377th HCOS outgoing commander, relinquished leadership to McMillian. (U.S. Air Force photo by Airman 1st Class Spencer Kanar.)