Nurse anesthetists outnumber anesthesiologists billing Medicare

In the last six months, 16.6% more nurse anesthetists have billed Medicare than anesthesiologists, according to a Center for Anesthesia Workforce Studies report published Feb. 7 by the American Society of Anesthesiologists. 

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There are approximately 8,755 more practicing nurse anesthetists in the U.S. than anesthesiologists. The number of nurse anesthetists has also grown 9.4% from 2012 to January 2025. 

While nurse anesthetists do not have independent practice authority in all states, many states are pushing to loosen restrictions. 

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