Anesthesia is often administered by a CRNA.  CRNAs work independently in the state of Alaska to assist your surgeon, dentist, or other medical providers to monitor and provide anesthesia for your procedure.   CRNAs are "advanced practice registered nurses" (APRNs) with specialized graduate-level education in anesthesiology.  CRNAs have been providing anesthesia in the US for over 150 years and provide over 50 million anesthetics each year, in all types of surgical cases, using all anesthetic techniques and practicing in every setting in which anesthesia is administered. 

Physician anesthesiologist also practice in the state of Alaska.  They are Medical Doctors with specialized training in anesthesiology.