In February, 2014, the number of nurse anesthetists in the United States for the first time exceeded the number of physician anesthesiologists. Not only are there more nurses than physicians in the field of anesthesia today, the number of nurses entering the field is growing at a faster rate than the number of physicians. Since December, 2012, the number of nurse anesthetists has grown by 12.1 percent compared to 5.8 percent for physician anesthesiologists.
The numbers—about 46,600 nurse anesthetists and 45,700 physician anesthesiologists—reported in the National Provider Identifier (NPI) dataset for January, 2015, probably understate the growing disparity. Today, more and more physicians are leaving the front lines of medicine, many obtaining additional qualifications such as MBA degrees and embarking on new careers in hospital administration or business.
Physician anesthesiologists can expect that fewer of us every year will continue to work in the model of personally providing anesthesia care to individual patients. Clinical practice is likely to skew even more toward the anesthesia care team model, already dominant in every part of the US except the west coast, with supervision of nurse anesthetists and anesthesiologist assistants.