Assurance Anesthesia, S.C. is a CRNA owned corporation that provides locum tenens coverage throughout the state of Wisconsin. Professional licenses are also held in Iowa, Minnesota, Michigan and Colorado. Licensure can and will be expanded as needed. John D. Dusenbery, owner and president, is a Certified Registered Nurse Anesthetist (CRNA) and an Advanced Practice Nurse Prescriber (APNP). Mr. Dusenbery received his anesthesia training while in the United States Air Force at Wilford Hall USAF Medical Center at Lackland Air Force Base, Texas. He has worked in many types of professional settings including the large tertiary setting of the Marshfield Clinic to small office based settings and to the austere setting in the desert of Saudi Arabia during Operstion Desert Storm.